Undergraduate medical students in their 5th year were given integrated lectures on two topics, “ The cerebellum ” and “Patient -centered medical care”. The results of a questionaire survey indicated that students had hoped for continuation and expansion of the lectures to include many other topics. A series of discussions among faculty however, disclosed two problems with regard to continuation and expansion, i. e., a lack of experts for integration and lack of adequate means to assess educational impact. Teaching personnel in integrated lectures need not necessarily be experts or professors, but persons who can be in close contact with one another for the purpose of integration. Setting aside rigid discussions on validity, small achievement tests may be useful in assessing the degree of student comprehension.