title: No impact of cryopreservation and thawing on embryo developmental potential--one more example for the problems of retrospective, non-controlled data.
authors.affiliation: Department of Gynecology and Obstetrics, Medical University of Lübeck, Germany.
authors.forename: M
authors.initials: M
authors.lastname: Ludwig
authors.forename: S
authors.initials: S
authors.lastname: Al-Hasani
authors.forename: R
authors.initials: R
authors.lastname: Felberbaum
authors.forename: K
authors.initials: K
authors.lastname: Diedrich
mesh_terms: D015925:Cryopreservation; D005314:Embryonic and Fetal Development / Q000502:physiology; D005260:Female; D006801:Humans; D009865:Oocytes / Q000502:physiology; D016471:Ovarian Hyperstimulation Syndrome / Q000209:etiology; D018873:Pregnancy Rate; D011446:Prospective Studies; D016032:Randomized Controlled Trials as Topic; D012189:Retrospective Studies; D012307:Risk Factors