Hyman J. Weiner's use of systems and population approaches: their relevance to social work practice in health care today.

In the course of his creative career, Hyman J. Weiner (August 22, 1926-December 2, 1980) exerted a particularly profound, distinct and dynamic influence on social work practice in health care settings. This tribute to him reviews the theoretical perspective and action guides he formulated to help social workers in these settings apply systems and population approaches to the shaping of their missions, functions and services. Their current applicability is discussed.