1. University of the Philippines College of Medicine, Obstetrics and Gynecology, Manila, Philippines
2. Manila Doctors Hospital, Obstetrics and Gynecology, Manila, Philippines
3. Medical City Clark, Obstetrics and Gynecology, Mabalacat- Pampanga, Philippines
4. Pamantasan ng Lungsod ng Maynila - Ospital ng Maynila, Obstetrics and Gynecology, Manila, Philippines
5. Far Eastern University - Nicanor Reyes Medical Foundation, Obstetrics and Gynecology, Quezon, Philippines
6. Isabela United Doctors Medical Center, Obstetrics and Gynecology, Cauayan- Isabela, Philippines
7. University of the Philippines Manila and the Philippine General Hospital, Neurosciences, Manila, Philippines
8. University of the Philippines College of Medicine, Clinical Epidemiology, Manila, Philippines