Identification of a stage-specific permissive in vitro culture environment for follicle growth and oocyte development. Related Articles Identification of a stage-specific permissive in vitro culture environment for follicle growth and oocyte development. Biol Reprod. 2006 Dec;75(6):916-23 Authors: Xu M, West E, Shea LD, Woodruff TKOriginal Article