6Main KM, Schmidt IM, Toppari J, et al. Early postnatal treatment of hypogonadotropic hypogonadism with recombinant human FSH and LH. Eur J Endocrinol 2002; 146(1): 75-79.
7Patrick J R, Frak H C, Timothy B H, et al. WHO manual for the standardized investigation and diagnosis of the infertile couple. New York. Cambridge University press, 1993:5-39.
8WHO:WHO laboratory manual for the examination of human semen and sperm-cervical mucus interaction, Third edition. New York: Cambridge University press, 1992:3-19.
9Nieschlag E, Mauss J, Coert A, et al. Plasma androgen levels in men after oral administration of testosterone or testosterone undecanoate. Acta Endocrine(copenh) 1975; 79(2): 366-374.
10Gooren LJ. A ten-year safety study of the oral androgen testosterone undecanoate. JAndrol 1994; 15(3): 212-215.