Sociology, Medical: The study of the social determinants and social effects of health and disease, and of the social structure of medical institutions or professions.Sociology: A social science dealing with group relationships, patterns of collective behavior, and social organization.Feminism: The theory of the political, economic, and social equality of the sexes and organized activity on behalf of women's rights and interests. (Webster New Collegiate Dictionary, 1981)Psychology, Social: The branch of psychology concerned with the effects of group membership upon the behavior, attitudes, and beliefs of an individual.Social Sciences: Disciplines concerned with the interrelationships of individuals in a social environment including social organizations and institutions. Includes Sociology and Anthropology.HumanitiesIllness Behavior: Coordinate set of non-specific behavioral responses to non-psychiatric illness. These may include loss of APPETITE or LIBIDO; disinterest in ACTIVITIES OF DAILY LIVING; or withdrawal from social interaction.Social Change: Social process whereby the values, attitudes, or institutions of society, such as education, family, religion, and industry become modified. It includes both the natural process and action programs initiated by members of the community.LithuaniaPolandPublic Health: Branch of medicine concerned with the prevention and control of disease and disability, and the promotion of physical and mental health of the population on the international, national, state, or municipal level.History, 20th Century: Time period from 1901 through 2000 of the common era.Research: Critical and exhaustive investigation or experimentation, having for its aim the discovery of new facts and their correct interpretation, the revision of accepted conclusions, theories, or laws in the light of newly discovered facts, or the practical application of such new or revised conclusions, theories, or laws. (Webster, 3d ed)