H. Hoogen

Clinical trial with testosterone undecanoate for male fertility control.

E. Nieschlag, E. J. Wickings, H. Schuster, 1978, Contraception.

Metabolism of 2-hydroxyoestrogen methyl ethers in the rat liver in vitro.

P. Ball, R. Knuppen, H. Hoppen, 1973, Hoppe-Seyler's Zeitschrift fur physiologische Chemie.

Trial of high-dose testosterone undecanoate in treatment of male infertility.

E. Nieschlag, H. Kloer, H. Hoogen, 1980, International journal of andrology.