Fig. 3From: Luteal phase support for in vitro fertilization/intracytoplasmic sperm injection fresh cycles: a systematic review and network meta-analysisNetwork meta-analysis (NMA) of live birth and ongoing pregnancy according to luteal phase support initiation strategy. Abbreviations: HCG = human chorionic gonadotrophin; VPP = vaginal progesterone pessary; VPG = vaginal progesterone gel; IMP = intramuscular progesterone; OP = oral progesterone; RP = rectal progesteroneBack to article page