A sociology of health / Andrew C. Twaddle and Richard M. Hessler ; with foreword by Talcott Parsons. Twaddle, Andrew C., 1938- Hessler, Richard M., joint author. Social medicine. Health services. Social medicine. 362.1042 TWS Includes indexes. Bibliography: p. 318-334. Saint Louis : Mosby, 1977. 1977. 1977 Text xvi, 349 p. : eng