title: Irregular periods linked to heart attacks.
mesh_terms: D005260:Female; D006801:Humans; D007328:Insulin / Q000097:blood; D008599:Menstruation Disturbances / Q000209:etiology*; D009203:Myocardial Infarction / Q000209:etiology*; D011085:Polycystic Ovary Syndrome / Q000150:complications*
chemical_list: D007328:Insulin