1. Biofeedback and biophysical monitoring during pregnancy and labor;Gregg,1983
2. Nonpharmaceutical methods for relieving pain and discomfort during pregnancy;Brucher;Maternal Child Nursing,1984
3. Effects of cognitive and pharmacologic strategies on analogued labor pain;Geden;Nursing Research,1986
4. Biofeedback: Principles and practice for clinicians;Basmajian,1983
5. Biofeedback as an aid to childbirth;St. James-Roberts;Br j Obstet Gynaecol,1983