Additional single dose GnRH agonist during luteal phase support may improve live birth rate in GnRHa-HRT frozen–thawed embryo transfer cycle: a retrospective cohort study. - Chang, Wei-Shan; Lin, Pei-Hsuan; Li, Chia-Jung; Chern, Chyi-Uei; Chen, Yu-Chen; Lin, Li-Te; Tsui, Kuan-Hao (BMC Pregnancy & Childbirth, 2023)