He was a heavy smoker , and for many years had noticed increasing exertional dyspnoea .
病人吸烟很重；多年来用力时便感到呼吸困难，且日趋严重。
For example , a 55 year old man with classic exertional angina that is relieved with rest or nitroglycerine needs no further tests to confirm the diagnosis of coronary disease .
