Essentials Of Human Disease 2nd Edition by Leonard Crowley

تمرين 9

Peter Jones is a 65-year-old man who has noted progressive shortness of breath on exertion for the past year. He has smoked about two packs of cigarettes daily since he was about 17 years old, but he has cut back on his smoking recently. He wonders what his problem is and what he should do about it. He is planning to see his physician next week but he would like your opinion now.