Nannapat Sinrat และ Surasith Chaithongwongwatthana. (2020) The Outcomes of Ampicillin plus Azithromycin to Prolong Latency Period in Preterm Premature Rupture of Membranes between 24 and 33+6 Weeks of Gestation at King Chulalongkorn Memorial Hospital. <i>Thai Journal of Obstetrics and Gynaecology</i>, <i>28</i>(3), 175-182.Nannapat Sinrat และ Surasith Chaithongwongwatthana. "The Outcomes of Ampicillin plus Azithromycin to Prolong Latency Period in Preterm Premature Rupture of Membranes between 24 and 33+6 Weeks of Gestation at King Chulalongkorn Memorial Hospital". Thai Journal of Obstetrics and Gynaecology 28 (2020):175-182.Nannapat Sinrat และ Surasith Chaithongwongwatthana. The Outcomes of Ampicillin plus Azithromycin to Prolong Latency Period in Preterm Premature Rupture of Membranes between 24 and 33+6 Weeks of Gestation at King Chulalongkorn Memorial Hospital. PIMDEE Co. Ltd.:ม.ป.ท. 2020.