1. a Department of Obstetrics and Gynecology , Taipei Medical University Hospital , Taipei , Taiwan, ROC
2. b School of Pharmacy , Taipei Medical University , 250 Wu-Hsing Street, Taipei , 110 , Taiwan, ROC
3. c Graduate Institute of Oral Sciences , Taipei Medical University , Taipei , Taiwan, ROC
4. d Dental Department , Wanfang Municipal Hospital , Taipei , Taiwan, ROC
5. e Department of Dentistry , Taipei Medical University Hospital , Taipei , Taiwan, ROC