Department of Obstetric and Gynecology;
Faculty of Mecdcine;
Thammasat University;
Pathumthani;
Bangkok 12120;
Thailand;
Faculty of Medicine;
Thammasat University;
Pathumthani;
Bangkok 12120;
Thailand;
Faculty of Medicine;
Office of Graduate Studies;
Thammasat University;
Pathumthani;
Bangkok 12120;
Thailand;
Infertility Unit;
Thammasat University Hospital;
Pathumthani;
Bangkok 12120;
Thailand;