Authors: Cybele L Abad; Mary Ann D Lansang; Cynthia P Cordero; Ethel Dominique E Viray; Beatrice J Tiangco; Jia An G Bello; Jan Jorge M Francisco; Marja B Buensalido; Maria Fe R Tayzon; Karl Evans R Henson; Regina P Berba; Elizabeth Paz- Pacheco; Mediadora C Saniel Journal: Clin Epidemiol Glob Health Date: 2021-01-17