L. Dikkeschei

The determination of delta‐5‐androstenediol and its sulphate in serum and urine by gas chromatography‐mass spectrometry

P. Willemse, G. Nagel, B. Wolthers, 1993, Clinical endocrinology.

Results of the performance verification of the CoaguChek XS system.

A. Van den Besselaar, P. L. Pérez, T. Wolf, 2008, Thrombosis research.

Pharmacodynamic effects of depot-medroxyprogesterone acetate (DMPA) administered to lactating women on their male infants.

M. Forest, C. Sekadde-kigondu, P. Muia, 1996, Contraception.

Determination of megestrol acetate and cyproterone acetate in serum of patients with advanced breast cancer by high-performance liquid chromatography.

P. Willemse, D. Sleijfer, P. Willemse, 1990, Journal of chromatography.

Physiological importance of dehydroepiandrosterone

P. Willemse, B. Wolthers, L. Dikkeschei, 1994, The Lancet.

Optimization of a classical aromatase activity assay and application in normal, adenomatous and malignant breast parenchyma

P. Willemse, G. Nagel, B. Wolthers, 1996, The Journal of Steroid Biochemistry and Molecular Biology.

Delta‐5‐androstenediol and its sulphate in serum and urine of normal adults and patients with endocrine diseases

P. Willemse, G. Nagel, B. Wolthers, 1993, Clinical endocrinology.