title: Ask the doctors. I have atrial fibrillation and my doctor has placed me on a blood thinner called Coumadin. I have to go into the hospital every couple of weeks to get my blood checked. Is this really necessary?
mesh_terms: D000925:Anticoagulants / Q000097:blood*; D001281:Atrial Fibrillation / Q000097:blood*; D001777:Blood Coagulation / Q000187:drug effects*; D016903:Drug Monitoring / Q000295:instrumentation / Q000379:methods*; D006801:Humans; D013997:Time Factors; D014859:Warfarin / Q000097:blood*
chemical_list: D000925:Anticoagulants; D014859:Warfarin