1. Apparatus for continuous monitoring of the fetal heart rate;Hon;Yale J,Biol Med,1960
2. Fetal electrocardiography;Shenker;Obstet,Gynecol Surv,1966
3. Fetal electrocardiography in labor: A new scalp electrode;LaCroix;Mich Med,1968
4. Instrumentation of fetal heart rate and fetal electrocardiography. II. A vaginal electrode;Hon;Am J Obstet Gynecol,1963
5. Electrode evaluation of the fetal heart rate. XI. Description of a spiral electrode;Hon;Obstet Gynecol,1972