参考答案

正确答案：pepticulcer eczemacolitisand asthma
pepticulcer, eczema，colitis，and asthma 解析：由题干中的关键词conditions，have been considered，classic examples of psychosomatic illness定位到第一个小标题下面第三段首句：Certain conditions have been considered classic examples of psychosomatic illness：pepticulcer, eczema，colitis，and asthma，由此得出答案。