Lada, Christina Olly , Faculty of medicine and veterinary medicine, Universitas Nusa Cendana Lada, Christina Olly, faculty of medicine and veterinary, Universitas Nusa Cendana Lada, Christina Olly, Faculty of Medicine Nusa Cendana University lada, christina olly, Medical Faculty Nusa Cendana University Lada, Christina Olly, Nusa Cendana University Laksmi, Lidya Imelda, Faculty of Medicine, Universitas Sumatera Utara Laksmi, Purwita Wijaya Latief, Luana Lidwina, University of Indonesia Lek, Ngee, Senior Consultant, Department of Paediatrics, KK Women's and Children's Hospital, Singapore; and Assistant Professor, Duke-NUS Medical School, National University of Singapore Lestari, Ludy Wiji, Faculty of Medical and Health Science, Maulana Malik Ibrahim State Islamic University, Indonesia