Sirayapiwat, Porntip, Surasith Chaithongwongwatthana, and Suranan Tirawatnapong. 2017. “Triple Therapies Versus Clindamycin Plus Gentamicin in The Treatment of Acute Pelvic Inflammatory Disease, A Randomized Controlled Trial”. Thai Journal of Obstetrics and Gynaecology 14 (3). Bangkok, Thailand:215. https://he02.tci-thaijo.org/index.php/tjog/article/view/92448.