| An international association between Helicobacter pylori infection and gastric cancer. The EUROGAST Study Group. EUROGAST Lancet. 341, 1359-62, 1993 | 1512* | 1993 |
| Epidemiology of, and risk factors for, Helicobacter pylori infection among 3194 asymptomatic subjects in 17 populations. The EUROGAST Study Group. EUROGAST Gut 34, 1672-6, 1993 | 592* | 1993 |
| Post-natal depression in an urban area of Portugal: comparison of childbearing women and matched controls A Augusto, R Kumar, JM Calheiros, E Matos, E Figueiredo Psychological Medicine 26 (1), 135-141, 1996 | 229 | 1996 |
| National assessment of human health effects of climate change in Portugal: approach and key findings E Casimiro, J Calheiros, FD Santos, S Kovats Environmental health perspectives 114 (12), 1950-1956, 2006 | 183 | 2006 |
| Effects of apparent temperature on daily mortality in Lisbon and Oporto, Portugal SP Almeida, E Casimiro, J Calheiros Environmental Health 9, 1-7, 2010 | 172 | 2010 |
| The effect of social support on the quality of life of patients with multiple sclerosis DC Costa, MJ Sá, JM Calheiros Arquivos de neuro-psiquiatria 70, 108-113, 2012 | 137 | 2012 |
| Prevalence and smoking trends in Portugal and Europe J Precioso, J Calheiros, D Pereira, H Campos, H Antunes, L Rebelo, ... Acta Médica Portuguesa 22 (4), 335-348, 2009 | 82* | 2009 |
| Smoking behaviour predicts tobacco control attitudes in a high smoking prevalence hospital: A cross-sectional study in a Portuguese teaching hospital prior to the national … SB Ravara, JM Calheiros, P Aguiar, LT Barata BMC Public Health 11, 1-11, 2011 | 68 | 2011 |
| Social support network and quality of life in multiple sclerosis patients DC Costa, MJ Sá, JM Calheiros Arquivos de neuro-psiquiatria 75 (5), 267-271, 2017 | 63 | 2017 |
| Short-term association between exposure to ozone and mortality in Oporto, Portugal SP de Almeida, E Casimiro, J Calheiros Environmental research 111 (3), 406-410, 2011 | 55 | 2011 |
| Prevalence of cutaneous lesions in Freixo de Espada a Cinta A Massa, R Alves, J Amado, E Matos, M Sanches, M Selores, C Santos, ... Acta medica portuguesa 13 (5-6), 247-254, 2000 | 53* | 2000 |
| Compliance and enforcement of a partial smoking ban in Lisbon taxis: an exploratory cross-sectional study SB Ravara, M Castelo-Branco, P Aguiar, JM Calheiros BMC Public Health 13, 1-10, 2013 | 43 | 2013 |
| Gastric cancer, gastritis and plasma vitamin C: Results from an international correlation and cross-sectional study. WEBB PM, BATES CJ, PALLI D, FORMAN D, EUROGAST INTERNATIONAL JOURNAL OF CANCER 73, 684-689, 1997 | 40 | 1997 |
| Headaches in medical school students JMP Monteiro, E Matos, JM Calheiros Neuroepidemiology 13 (3), 103-107, 1994 | 40 | 1994 |
| Second hand smoke (SHS) exposure in children. An evaluation of a preventative measure J Precioso, C Samorinha, JM Calheiros, M Macedo, H Antunes, ... Revista Portuguesa de Pneumologia (English Edition) 16 (1), 57-72, 2010 | 34* | 2010 |
| Determination of biomarkers of tobacco smoke exposure in oral fluid using solid-phase extraction and gas chromatography–tandem mass spectrometry BM Da Fonseca, IED Moreno, AR Magalhães, M Barroso, JA Queiroz, ... Journal of Chromatography B 889, 116-122, 2012 | 30 | 2012 |
| Human health - Climate Change in Portugal. E Casimiro, JM Calheiros, S Dessai Climate Change in Portugal. Scenarios, Impacts and Adaptation Measures—SIAM …, 2002 | 29 | 2002 |
| Measuring health vulnerability: An interdisciplinary indicator applied to mainland portugal GM Oliveira, DG Vidal, MP Ferraz, JM Cabeda, M Pontes, RL Maia, ... International journal of environmental research and public health 16 (21), 4121, 2019 | 28 | 2019 |
| Are physicians aware of their role in tobacco control? A conference-based survey in Portugal SB Ravara, M Castelo-Branco, P Aguiar, JM Calheiros BMC Public Health 14, 1-11, 2014 | 25 | 2014 |
| Social characteristics and quality of life of Portuguese multiple sclerosis patients DC Costa, MJ Marques Sá, JM Calheiros Neurology and therapy 2, 43-56, 2013 | 22 | 2013 |
