CUSCHIERI, S., GRECH, V. and CALLEJA, N., 2019. WASP (Write a Scientific Paper): The use of bibliographic management software. Early human development, 128, pp. 118-119.
CUSCHIERI, S., VASSALLO, J., CALLEJA, N. and MAMO, J., 2019. Relationship of past, present, and passive smoking with sociodemographic, anthropometric, biochemical, and dysglycemic profiles. Journal of diabetes, 11(1), pp. 87-89.
AGIUS, A., CALLEJA, N., CAMENZULI, C., SULTANA, R., PULLICINO, R., ZAMMIT, C., CALLEJA AGIUS, J. and POMARA, C., 2018. Perceptions of first-year medical students towards learning anatomy using cadaveric specimens through peer teaching. Anatomical sciences education, 11(4), pp. 346-357.
GRECH, V. and CALLEJA, N., 2018. WASP (Write a Scientific Paper): Multivariate analysis. Early human development, 123, pp. 42-45.
AZZOPARDI-MUSCAT, N., BUTTIGIEG, S., CALLEJA, N. and MERKUR, S., 2017. Malta: Health System Review. Health systems in transition, 19(1), pp. 1-137.
CUSCHIERI, S., VASSALLO, J., CALLEJA, N., PACE, N. and MAMO, J., 2017. The Effects of Socioeconomic Determinants on Hypertension in a Cardiometabolic At-Risk European Country. International journal of hypertension, 2017, pp. 7107385.
GATT, I., WEST, L.M., CALLEJA, N., BRIFFA, C. and CORDINA, M., 2017. Psychometric properties of the Belief about Medicines Questionnaire (BMQ) in the Maltese language. Pharmacy practice, 15(1), pp. 886.
GRECH, V., AQUILINA, S., CAMILLERI, E., SPITERI, K., BUSUTTIL, M.L., SANT'ANGELO, V.F. and CALLEJA, N., 2017. The Malta Childhood National Body Mass Index Study: A Population Study. Journal of pediatric gastroenterology and nutrition, 65(3), pp. 327-331.
MAGRI, C.J., DEBONO, R., CALLEJA, N., GALEA, J. and FAVA, S., 2017. Prognostic indicators and generation of novel risk equations for estimation of 10-year and 20-year mortality following acute coronary syndrome. Postgraduate medical journal, 93(1099), pp. 245-249.
VESTERGAARD, L.S., NIELSEN, J., KRAUSE, T.G., ESPENHAIN, L., TERSAGO, K., BUSTOS SIERRA, N., DENISSOV, G., INNOS, K., VIRTANEN, M.J., FOUILLET, A., LYTRAS, T., PALDY, A., BOBVOS, J., DOMEGAN, L., O'DONNELL, J., SCORTICHINI, M., DE MARTINO, A., ENGLAND, K., CALLEJA, N., VAN ASTEN, L., TEIRLINCK, A.C., TONNESSEN, R., WHITE, R.A., P SILVA, S., RODRIGUES, A.P., LARRAURI, A., LEON, I., FARAH, A., JUNKER, C., SINNATHAMBY, M., PEBODY, R.G., REYNOLDS, A., BISHOP, J., GROSS, D., ADLHOCH, C., PENTTINEN, P. and MOLBAK, K., 2017. Excess all-cause and influenza-attributable mortality in Europe, December 2016 to February 2017. Euro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin, 22(14), pp. 10.2807/1560-7917.ES.2017.22.14.30506.
CUSCHIERI, S., VASSALLO, J., CALLEJA, N., CAMILLERI, R., BORG, A., BONNICI, G., ZHANG, Y., PACE, N. and MAMO, J., 2016. Prevalence of obesity in Malta. Obesity science & practice, 2(4), pp. 466-470.
CUSCHIERI, S., VASSALLO, J., CALLEJA, N., PACE, N., ABELA, J., ALI, B.A., ABDULLAH, F., ZAHRA, E. and MAMO, J., 2016. The diabesity health economic crisis-the size of the crisis in a European island state following a cross-sectional study. Archives of public health = Archives belges de sante publique, 74, pp. 52-016-0164-6. eCollection 2016.
CUSCHIERI, S., VASSALLO, J., CALLEJA, N., PACE, N. and MAMO, J., 2016. Diabetes, pre-diabetes and their risk factors in Malta: a study profile of national cross-sectional prevalence study. Global health, epidemiology and genomics, 1, pp. e21.
BARTOLO, A., CALLEJA, N., MCDONALD, F. and CAMILLERI, S., 2015. Dental anomalies in first-degree relatives of transposed canine probands. International journal of oral science, 7(3), pp. 169-173.
GATT, M., ENGLAND, K., GRECH, V. and CALLEJA, N., 2015. Contribution of Congenital Anomalies to Neonatal Mortality Rates in Malta. Paediatric and perinatal epidemiology, 29(5), pp. 401-406.
MAEMPEL, J.F., RIDDOCH, F., CALLEJA, N. and BRENKEL, I.J., 2015. Longer hospital stay, more complications, and increased mortality but substantially improved function after knee replacement in older patients. Acta orthopaedica, 86(4), pp. 451-456.
PULLICINO, G., SCIORTINO, P., CALLEJA, N., SCHAFER, W., BOERMA, W. and GROENEWEGEN, P., 2015. Comparison of patients' experiences in public and private primary care clinics in Malta. European journal of public health, 25(3), pp. 399-401.
TARTARI, E., ALLEGRANZI, B., ANG, B., CALLEJA, N., COLLIGNON, P., HOPMAN, J., LANG, L., LEE, L.C., LING, M.L., MEHTAR, S., TAMBYAH, P.A., WIDMER, A. and VOSS, A., 2015. Preparedness of institutions around the world for managing patients with Ebola virus disease: an infection control readiness checklist. Antimicrobial resistance and infection control, 4, pp. 22-015-0061-8. eCollection 2015.
AZZOPARDI MUSCAT, N., CALLEJA, N., CALLEJA, A. and CYLUS, J., 2014. Malta: Health system review. Health systems in transition, 16(1), pp. 1-97, xiii.
PACE-ASCIAK, A., MAMO, J. and CALLEJA, N., 2013. Tuberculosis among undocumented boat migrants to Malta: implications for a migrant tuberculosis policy. The international journal of tuberculosis and lung disease : the official journal of the International Union against Tuberculosis and Lung Disease, 17(8), pp. 1065-1070.
POWLES, J., FAHIMI, S., MICHA, R., KHATIBZADEH, S., SHI, P., EZZATI, M., ENGELL, R.E., LIM, S.S., DANAEI, G., MOZAFFARIAN, D. and GLOBAL BURDEN OF DISEASES NUTRITION AND CHRONIC DISEASES EXPERT GROUP (NUTRICODE), 2013. Global, regional and national sodium intakes in 1990 and 2010: a systematic analysis of 24 h urinary sodium excretion and dietary surveys worldwide. BMJ open, 3(12), pp. e003733-2013-003733.
DEBONO, R., VINCENTI, K. and CALLEJA, N., 2012. Risk communication: climate change as a human-health threat, a survey of public perceptions in Malta. European journal of public health, 22(1), pp. 144-149.
FORMOSA, N., CALLEJA, N. and TORPIANO, J., 2012. Incidence and modes of presentation of childhood type 1 diabetes mellitus in Malta between 2006 and 2010. Pediatric diabetes, 13(6), pp. 484-488.
KUULASMAA, K., TOLONEN, H., KOPONEN, P., KILPELAINEN, K., AVDICOVA, M., BRODA, G., CALLEJA, N., DIAS, C., GOSSWALD, A., KUBINOVA, R., MINDELL, J., MANNISTO, S., PALMIERI, L., TELL, G.S., TRICHOPOULOU, A. and VERSCHUREN, W.M., 2012. An overview of the European Health Examination Survey Pilot Joint Action. Archives of public health = Archives belges de sante publique, 70(1), pp. 20-7367-70-20.
MAGRI, C.J., CALLEJA, N., BUHAGIAR, G., FAVA, S. and VASSALLO, J., 2012. Ankle-brachial index in a type 2 diabetic population with proliferative retinopathy: associated risk factors and complications. International angiology : a journal of the International Union of Angiology, 31(2), pp. 134-141.
MAGRI, C.J., CALLEJA, N., BUHAGIAR, G., FAVA, S. and VASSALLO, J., 2012. Factors associated with diabetic nephropathy in subjects with proliferative retinopathy. International urology and nephrology, 44(1), pp. 197-206.
CALLEJA-AGIUS, J., SCHEMBRI-WISMAYER, P., CALLEJA, N., BRINCAT, M. and SPITERI, D., 2011. Obstetric outcome and cytokine levels in threatened miscarriage. Gynecological endocrinology : the official journal of the International Society of Gynecological Endocrinology, 27(2), pp. 121-127.
MAGRI, C.J., CALLEJA, N., BUHAGIAR, G., FAVA, S. and VASSALLO, J., 2011. Factors associated with diabetic nephropathy in subjects with proliferative retinopathy. International urology and nephrology, .
MAGRI, C.J., CALLEJA, N., BUHAGIAR, G., FAVA, S. and VASSALLO, J., 2011. Predictors of vibration perception threshold in type 2 diabetic patients with proliferative retinopathy. Postgraduate medical journal, 87(1032), pp. 658-663.
ROSSO, M., AGIUS, R. and CALLEJA, N., 2011. Development and validation of a screening questionnaire for noise-induced hearing loss. Occupational medicine (Oxford, England), .
CALLEJA-AGIUS, J., SCHEMBRI-WISMAYER, P., CALLEJA, N., BRINCAT, M. and SPITERI, D., 2010. Obstetric outcome and cytokine levels in threatened miscarriage. Gynecological Endocrinology, (00), pp. 1-7.
CALLEJA-AGIUS, J., CALLEJA, N., BRINCAT, M. and SPITERI, D., 2010. Obstetric outcome in cases of threatened spontaneous abortion. International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics, 110(1), pp. 75-76.
CALLEJA-AGIUS, J., CALLEJA, N., BRINCAT, M. and SPITERI, D., 2010. Obstetric outcome in cases of threatened spontaneous abortion. International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics, 110(1), pp. 75-76.
GRUPPETTA, M., CALLEJA, N. and FAVA, S., 2010. Long-term survival after acute myocardial infarction and relation to type 2 diabetes and other risk factors. Clinical cardiology, 33(7), pp. 424-429.
MICALLEF, C., CALLEJA, N. and DECELIS, A., 2010. Assessing the capabilities of 11-year-olds for three types of basic physical activities. European journal of pediatrics, 169(9), pp. 1093-1096.
ENGLAND, K., CAMILLERI, L., CALLEJA, N., DEBONO, R., PORTER, S. and PLAPP, S., 2009. THE RELATIONSHIP OF AMBIENT TEMPERATURE AND HUMIDITY WITH MORTALITY ON THE MALTESE ISLANDS 1992-2005. WHO/MHEC.
MAGRI, C.J., BORG, C., ZAHRA, J., FORMOSA, D., CALLEJA, N., THEUMA, A. and BUHAGIAR, L., 2009. P0419 MULTIVESSEL CORONARY INVOLVEMENT-A RISK PREDICTOR FOR CONTRAST-INDUCED NEPHROPATHY. European journal of internal medicine, 20, pp. S142.
MUSCAT, M., SPITERI, G., CALLEJA, N., HAIDER, J., GRAY, S.J., MELILLO, J.M., MAMO, J. and CUSCHIERI, P., 2009. Invasive meningococcal disease in Malta: an epidemiological overview, 1994-2007. Journal of medical microbiology, 58(11), pp. 1492.
SCIBERRAS, D., ROBINSON, V. and CALLEJA, N., 2009. Is general practice the optimal setting for the recognition of statin-induced myotoxicity? Primary Care cardiovascular Journal, Oct-Nov-Dec, 2, pp. 195-200.
WILKINSON, J.R., BERGHMANS, L., IMBERT, F., LEDESERT, B., OCHOA, A. and ISARE III PROJECT TEAM, 2009. Health indicators in the European regions: expanding regional comparisons to the new countries of the European Union - ISARE III. Public health, 123(7), pp. 490-495.
AQUILINA, S., SCERRI, L., CALLEJA, N. and AMATO-GAUCI, A., 2008. Trends in sun exposure awareness and protection practices in Malta: 1999-2004. Malta Medical Journal, 20(04),.
CACHIA, E., CALLEJA, N., AAKEROY, R., DEGAETANO, J. and VASSALLO, M., 2008. Incidence of inflammatory bowel disease in Malta between 1993 and 2005: a retrospective study. Inflammatory bowel diseases, 14(4), pp. 550-553.
DEBONO, M., CACHIA, E., CASSAR, A., CALLEJA, N., MALLIA, M. and VASSALLO, J., 2008. Is erectile dysfunction a sentinel symptom for cardiovascular autonomic neuropathy in patients with type 2 diabetes? Andrologia, 40(1), pp. 1-6.
FELICE, E., SALIBA, J., GRECH, V., COX, J. and CALLEJA, N., 2007. Antenatal psychiatric morbidity in Maltese women. General hospital psychiatry, 29(6), pp. 501-505.
GAUCI, C., GILLES, H., O'BRIEN, S., MAMO, J. and CALLEJA, N., 2007. General practitioners role in the notification of communicable diseases - study in Malta. Euro surveillance : bulletin europeen sur les maladies transmissibles = European communicable disease bulletin, 12(11), pp. E5-6.
GAUCI, C., GILLES, H., O'BRIEN, S., MAMO, J., STABILE, I., RUGGERI, F.M., CALLEJA, N. and SPITERI, G., 2007. Estimating the burden and cost of infectious intestinal disease in the Maltese community. Epidemiology and infection, 135(8), pp. 1290-1298.
GAUCI, C., GILLES, H., O'BRIEN, S., MAMO, J., STABILE, I., RUGGERI, F.M., GATT, A., CALLEJA, N. and SPITERI, G., 2007. The magnitude and distribution of infectious intestinal disease in Malta: a population-based study. Epidemiology and infection, 135(8), pp. 1282-1289.
GAUCI, C., MELILLO FENECH, T., GILLES, H., O'BRIEN, S., MAMO, J., STABILE, I., CALLEJA, N., RUGGERI, F. and CUSCHIERI, L., 2007. Sentinel Surveillance: an option for surveillance of infectious intestinal disease. Euro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin, 12(4), pp. E13-4.
MUSCAT BARON, Y., BRINCAT, M.P., GALEA, R. and CALLEJA, N., 2007. Low intervertebral disc height in postmenopausal women with osteoporotic vertebral fractures compared to hormone-treated and untreated postmenopausal women and premenopausal women without fractures. Climacteric : the journal of the International Menopause Society, 10(4), pp. 314-319.
AQUILINA, S., DALMAS, M., CALLEJA, N., GATT, P. and SCERRI, L., 2006. A profile of invasive cutaneous malignant melanoma in Malta: 1993-2002. Journal of the European Academy of Dermatology and Venereology : JEADV, 20(8), pp. 958-963.
CALLEJA-AGIUS, J., CUSTO, R., BRINCAT, M.P. and CALLEJA, N., 2006. Placental abruption and placenta praevia. European Clinics in Obstetrics and Gynaecology, 2(3), pp. 121-127.
CALLEJA-AGIUS, J., O'BRIEN, P., ISKAROS, J. and CALLEJA, N., 2006. Pyomyoma. Journal of obstetrics and gynaecology : the journal of the Institute of Obstetrics and Gynaecology, 26(7), pp. 709-710.
CALLEJA-AGIUS, J., O'BRIEN, P., ISKAROS, J. and CALLEJA, N., 2006. Pyomyoma. Journal of obstetrics and gynaecology : the journal of the Institute of Obstetrics and Gynaecology, 26(7), pp. 709-710.
ELLUL, I.C. and CALLEJA, N., 2006. Clinical trials on medicinal products in Malta following EU accession. Malta Medical Journal, 18(02), pp. 4.
BARON, Y.M., BRINCAT, M.P., GALEA, R. and CALLEJA, N., 2005. Intervertebral disc height in treated and untreated overweight post-menopausal women. Human reproduction (Oxford, England), 20(12), pp. 3566-3570.
AGIUS, A.M., CORDINA, M. and CALLEJA, N., 2004. The role of atopy in Maltese patients with chronic rhinitis. Clinical otolaryngology and allied sciences, 29(3), pp. 247-253.
CALLEJA, N., 2004. Socioeconomic aspects of population ageing in Malta. In: G. BAKHMETOVA and L. IVANKOVA, eds, Современные проблемы старения населения в мире: тенденции, перспективы, взаимоотношения между поколениями (trans. Modern problems of population ageing in the world: tendencies, prospects, relationships between generations). Moscow: Max Press, .