The Medical and Surgical Practice of NaProTECHNOLOGY, 183-261, 2004
Chapter 15: Scientific Foundations of the CrMS
Author affiliations
- Pope Paul VI Institute for the Study of Human Reproduction, Omaha, Nebraska. ROR
The Medical and Surgical Practice of NaProTECHNOLOGY, 183-261, 2004
The CREIGHTON MODEL FertilityCare System (CrMS) rests on a decades-long body of research demonstrating that cervical mucus functions as a physiologically regulated biological valve, opening predictably at the periovulatory estrogen rise and closing in the post-Peak phase. Chapter 15 of Hilgers (2004) synthesizes hormonal, ultrasound, cytologic, and biophysical evidence to establish that a woman's external observation of her Peak Day reliably identifies the fertile window, and documents the system's effectiveness data for both achieving and avoiding pregnancy across a five-study meta-analysis of nearly 1,900 couples.
Hilgers, T. W. (2004). Chapter 15: Scientific Foundations of the CrMS. *The Medical and Surgical Practice of NaProTECHNOLOGY*, 183-261.
Hilgers TW. Chapter 15: Scientific Foundations of the CrMS. The Medical and Surgical Practice of NaProTECHNOLOGY. 2004:183-261.