Similarities and differences between primary care and specialized care are reviewed, based on research in health care. Professional requirements for primary and specialized care are identified, and implications for the scope and type of learning situations needed by undergraduate medical students are suggested. (Author/LBH)

The chronologic dimension of continuity of physician care (repeat visits to the same provider) is examined. This continuity is measured by the number of repeat visits to trainees under multiple time intervals of trainee exposure; part-time schedule is compared with full-time exposure. (MLW)

Four years of experience with an undergraduate program in a new community-based medical school are described in which students are involved over a two-and-a-half year period in the delivery of primary care in rural and semi-rural community health centers. The program appears to represent a viable new model for medical education. (Author/LBH)