Women in Labor: Mothers, Medicine, and Occupational Health in the United States, 1890–1980. ByAllison L. Hepler. Columbus: Ohio State University Press, 2000. xii + 177 pp. Photos, illustrations, index, notes, bibliography. Cloth, $47.50; paper, $18.95. ISBN: Cloth 0-814-20850-9; paper 0-814-25055-6