Relationships in medicine--causal vs. casual.
McDonough
P G
PG
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
D006063:Chorionic Gonadotropin