trimester

Accounting 選修課程包含風險管理，組織發展和管理法規等等。 每學年分為三個學期： 1st Trimester – 5月至8月 2nd Trimester – 9月至12月 3rd Trimester – 1月至4月 UPEPO Academic Programs UPEPO Admissions

Nakagawa S, Takemura Y; et al. Ovarian thecoma associated in the first trimester of pregnancy. J. Obstet. Gynaecol. Res. October 2004, 30 (5): 368–71 [2013-10-10]

（原始内容存档于2023-10-19）.  Zhang J, Zhou K, Shan D, Luo X. Medical methods for first trimester abortion. The Cochrane Database of Systematic Reviews. May 2022, 2022

（原始内容存档于2021-10-21） （英语）.  Efrat, Z.; Akinfenwa, O. O.; Nicolaides, K. H. First-trimester determination of fetal gender by ultrasound. Ultrasound in Obstetrics

Gülmezoglu, AM; Hofmeyr, GJ; Cheng, L; Campana, A. Medical methods for first trimester abortion.. The Cochrane Database of Systematic Reviews. 9 November 2011