Smoking and peptic ulcer disease. An economic approach to doctors' attitudes.
D000041:Absenteeism; D001291:Attitude of Health Personnel; D006801:Humans; D010437:Peptic Ulcer / Q000191:economics* / Q000209:etiology / Q000517:prevention & control; D010820:Physicians / Q000523:psychology*; D011044:Poland; D012907:Smoking