(Abstracted from Reprod Biomed Online 2018;36:630–645)
Sufficient luteal phase support (LPS) is essential during assisted reproductive technology (ART) cycles to improve implantation and pregnancy rates. The most common route for LPS in Europe is vaginal progesterone via capsule, gel, or tablet.
Nuffield Department of Obstetrics and Gynaecology, University of Oxford (T.C.); Oxford Fertility Ltd, The Fertility Partnership (T.C.), Oxford; Costello Medical Consulting Ltd, Cambridge (S.A.L., J.S.E.); and Besins Healthcare (UK) Ltd, London (A.L.), United Kingdom