1. Department of Obstetrics & Gynaecology, Faculty of Medicine, Padjadjaran University, Bandung, Indonesia
2. Bandung Fertility Center, Limijati Women and Children Hospital, Bandung, Indonesia
3. Biomedical Engineering Research Group, School of Electrical Engineering and Informatics, Bandung Institute of Technology, Bandung, Indonesia
4. Department of Clinical Pathology, Faculty of Medicine, Padjadjaran University, Bandung, Indonesia
5. Assisted Reproductive Technology Unit Prince of Wales Hospital, Chinese University of Hong Kong, Central Ave, Hong Kong