1. Besser, G.M., Mortimer, C.H.: Hypothalamic regulatory hormones. A review. J. clin. Path.27, 173 (1974)
2. Bowers, C., Friesen, H., Hwang, P., Guyda, H., Folkers, K.: Prolactin and thyrotropin release in man by synthetic pyroglutamyl-histidyl-prolineamide. Biochem. Biophys. Res. Commun.45, 1033 (1971)
3. Faglia, G., Travaglini, B., Ambrosi, B., Beck-Peccoz, A., Parracchi, A., Bara, R., Weber, G.: Some aspects of gonadal function in male patients with pituitary tumors. VI. International Seminar on Reproductive Physiology and Sexual Endocrinology. Brüssel 1976
4. Franchimont, P.: Le dosage radioimmunologique des gonadotrophines. Ann. Endocr. (Paris)29, 403 (1968)
5. Franchimont, P., Demoulin, A., Bourguignon, J.P.: Clinical use of LH-RH-test as a diagnostic tool. Hormone Res.6, 177 (1975)