Letter: "Post hoc" and hypoprothrombinemia.
D000293:Adolescent; D001777:Blood Coagulation / Q000187:drug effects; D002697:Chloral Hydrate / Q000009:adverse effects*; D006801:Humans; D008297:Male; D011655:Pulmonary Embolism / Q000188:drug therapy; D014859:Warfarin / Q000037:antagonists & inhibitors* / Q000627:therapeutic use
D002697:Chloral Hydrate; D014859:Warfarin