I’ve just found the original published research article from The Journal of the American Board of Family Medicine which makes fascinating reading. Click on the link below to read it-I promise its not a long article, fairly concise and to the point for a medical research article IMO
These quotes are from the article above it seems NPT is a ‘systematic medical approach for optimizing physiologic conditions for conception in vivo’
‘couples were taught to identify the fertile days of the menstrual cycle with the Creighton Model FertilityCare System, and most received additional medical treatment, including clomiphene (75%)’
Next question-what is the Creighton Model FertilityCare System ?