Margaret H. Rivnyak

Patient satisfaction among elderly enrollees and disenrollees in Medicare health maintenance organizations. Results from the National Medicare Competition Evaluation.

T. Wan, L. Rossiter, K. Langwell, 1989, JAMA.

Ambulatory Care Use among the Noninstitutionalized Elderly

T. Wan, M. H. Stegall, M. Rivnyak, 1989, Research on aging.