[1] Chulalongkorn Univ, Fac Med, 1873 Rama IV Rd, Pathum Wan Dist 10330, Bangkok, Thailand
[2] Harvard Univ, Harvard TH Chan Sch Publ Hlth, Dept Epidemiol, 677 Huntington Ave, Boston, MA USA
[3] Chulalongkorn Univ, Fac Pharmaceut Sci, 254 Phaya Thai Rd, Pathum Wan 10330, Bangkok, Thailand
[4] King Chulalongkorn Mem Hosp, Dept Pharm, 1873 Rama IV Rd, Pathum Wan Dist 10330, Bangkok, Thailand
[5] Chulalongkorn Univ, Fac Med, Dept Obstet & Gynecol, 1873 Rama IV Rd, Pathum Wan Dist 10330, Bangkok, Thailand
[6] King Chulalongkorn Mem Hosp, Dept Obstet & Gynecol, 1873 Rama IV Rd, Pathum Wan Dist 10330, Bangkok, Thailand