title: Heparin: help or hindrance? A commentary and review.
mesh_terms: D000818:Animals; D001778:Blood Coagulation Disorders / Q000188:drug therapy* / Q000209:etiology; D001792:Blood Platelets / Q000187:drug effects; D003276:Contraceptives, Oral / Q000009:adverse effects*; D004285:Dogs; D004739:England; D005260:Female; D006493:Heparin / Q000009:adverse effects / Q000032:analysis / Q000592:standards / Q000627:therapeutic use*; D006801:Humans; D008407:Mast Cells / Q000187:drug effects; D008428:Maternal Mortality; D008968:Molecular Conformation; D010602:Pharmacopoeias as Topic; D011247:Pregnancy; D011250:Pregnancy Complications, Hematologic / Q000209:etiology*; D011644:Puerperal Disorders / Q000188:drug therapy; D013923:Thromboembolism / Q000401:mortality* / Q000517:prevention & control; D014481:United States
chemical_list: D003276:Contraceptives, Oral; D006493:Heparin