1. Psychosomatic methods in painless childbirth;Chertok,1954
2. Relaxation methods in labor;Jacobson;Am. J. Obstet. Gynecol.,1954
3. A statistical study on the effects of exercise on childbearing;Rodway;J. Obstet. Gynecol.,1947
4. An objective evaluation of a prepared childbirth program;Davis;Am. J. Obstet. Gynecol.,1962
5. Motherhood and Personality: Psychosomatic Aspects of Childbirth;Chertok,1969