Barack Obama's Doctor Hyde Park internist (内科医师), Dr. David L. Scheiner, has treated Barack for 21 years. There have only been minor problems through the years -- stuff like rashes (皮疹), respiratory (呼吸的) infections (感染) etc. Scheiner noted a history of cancer in Obama's family. As for Obama, "his own history included intermittent (断断续续的) cigarette smoking," Scheiner wrote. (Source: WashingtonPost.com) Next: Obama's Wedding