Vaginal progesterone as luteal phase support in natural cycle frozen-thawed embryo transfer (ProFET): protocol for a multicentre, open-label, randomised controlled trial.
Caroline StadelmannChristina BerghMats BrännströmKristbjörg Heiður OlsenAli KhatibiMargareta KitlinskiSusanne LiffnerEva LundborgKenny A Rodriguez-WallbergAnnika StrandellGöran WestlanderGabriella WidlundÅsa MagnussonPublished in: BMJ open (2022)
NCT04725864.