Clinical investigation of the menstrual cycle. I. Diagram of the normal menstrual cycle.
The clinical definition of normal menstrual cycles has been attempted by using the basal body temperature charts of patients without gynecologic dysfunction who conceived in the following cycle. A second-species linear regression method has been used for statistical comparison of lengths of both follicular and luteal phases. A graphic representation of the equation of the tolerance limit about 46 normal cycles is proposed which can be considered a nomogram of the menstrual cycle.
D005260:Female; D006801:Humans; D008433:Mathematics; D008598:Menstruation; D013997:Time Factors