Beckers, N.G.M.

luteal phase group luteal phase patient stimulation treatment embryo study cycle oocyte level concentration pregnancy follicle luteal support hormone antagonist agonist support women fsh-ctp gnrha serum number protocol progesterone oocyte maturation gnrh agonist lh surge fertilization folate gnrh antagonist fauser oocyte retrieval subject embryo transfer effect duration corpus luteum luteum corpus surge administration maturation response monofollicular fl uid range randomized lh levels reprod gonadotrophin cessation injection corpus luteum function difference gonadotropin treatment groups luteal phase characteristics macklon ns result function becker characteristic day lh hyperstimulation transfer embryo quality folic outcome quality retrieval figure luteolysi progesterone concentrations randomization homocysteine development cobalamin hum reprod