title: Relationships in medicine--causal vs. casual.
authors.forename: P G
authors.initials: PG
authors.lastname: McDonough
mesh_terms: D002561:Cerebrovascular Disorders / Q000209:etiology; D006063:Chorionic Gonadotropin / Q000009:adverse effects / Q000502:physiology; D005260:Female; D005307:Fertilization in Vitro; D006801:Humans; D016471:Ovarian Hyperstimulation Syndrome / Q000150:complications*; D011247:Pregnancy; D011248:Pregnancy Complications / Q000209:etiology
chemical_list: D006063:Chorionic Gonadotropin