Öztürk, E., Pirbudak Cocel, L., Uğur, M.G., Kul, S., Berbağcı, A., Erdaloğlu, P., Sarı Demir, S. and Balat, Özcan 2011. A Quantitative Analysis of Pressure Pain Threshold and Pain Tolerance In Different Trimesters of Pregnancy and Relation with Ovarian Sex Hormones. Gynecology Obstetrics & Reproductive Medicine. 17, 3 (Dec. 2011), 137–141.