text_1: 28-year-old woman had a deep-vein thrombosis and pulmonary embolus with her first pregnancy.  I diagnosed her with prothrombin mutation.  Now she is on her second pregnancy.  "What kind of anticoagulation does she need?  Really the question was unfractionated heparin versus low molecular weight heparin."
text_2: What kind of heparin should a pregnant woman have?