Ananthapuri Hospitals and Research Institute - Cardiovascular Centre, University of Liverpool - Liverpool Centre for Cardiovascular Science, Sree Chitra Tirunal Institute for Medical Sciences and Technology (SCTIMST), Lisie Heart Institute, Cosmopolitan Hospital, Trivandrum, Mother Heart Care, Ananthapuri Hospitals and Research Institute - Cardiovascular Centre, Pushpagiri Medical College, Thiruvalla, M.O.S.C Medical College, Amrita Institute of Medical Sciences, Caritas Hospital, Thellakam, Baby Memorial Hospital, Calicut, Lekshmi Hospital, Palakkad, West Fort Hi-Tech Hospital, Thrissur, Co-operative Medical College Hospital, Kerala, Jubilee Mission Medical College and Research Institute, Government Medical College Hospital, Calicut, General Hospital, Kollam, Dr Damodaran Memorial Hospital, N S Memorial Institute of Medical Sciences, Ananthapuri Hospitals and Research Institute - Cardiovascular Centre, University of Liverpool - Liverpool Centre for Cardiovascular Science, Little Flower Hospital, Global Institute of Public Health, Global Institute of Public Health and Boston University - School of Public Health