Fig. 1
From: Preparation of the endometrium for frozen embryo transfer: an update on clinical practices
Proposal of timing of embryo transfer in HRT, tNC, and mNC and progesterone LPS in tNC and mNC.
Notes: ET: embryo transfer; HRT: hormone replacement therapy; tNC: true natural cycle; mNC: modified natural cycle; ETM: endometrial thickness; E2: estradiol OR: oocyte retrieval; LH: luteinizing hormone; LPS: luteal phase support; hCG: human chorionic gonadotropin D: day; P: progesterone