【单选题】Failure of fusion of the endocardial cushions leads to the condition known as persistent atrioventricular canal. This is associated with all of the following EXCEPT( )
【单选题】A50-year-old man has had increasing abdominal discomfort and swelling of his legs for the past 2 years. He has smoked cigarettes for 35 years. On physical examination, he has jugular venous distention...