“…In males, urinary 17-keto-steroids (Harkness et al, 1964) and testosterone (Harkness, Loraine, Bell & Ismail, 1965) (Jungck, Roy, Greenblatt & Mahesh, 1964;Mellinger & Thompson, 1966;Potts, 1968); the different dosages and the duration of treatment and of follow-up may ex¬ plain some of the apparent discrepancies (Heller, Rowley & Heller, 1969 It is possible that the dose of clomiphene used in the study reported here was too high and also that the duration of the courses of treatment was too short; the time interval for a possible alteration in the function of the germinal epithelium to be reflected in the ejaculate is known to be at least 60 and up to as long as 90 days (Heller et al, 1969).…”