Jacques J. Willemsen

Cardiovascular and endocrine responses to experimental stress: Effects of mental effort and controllability

Madelon L. Peters, Guido L. R. Godaert, R. E. Ballieux et al. · Psychoneuroendocrinology · 1998 · 207 citations

Veterinary Medicine, Endocrinology, Physiology +16

Is Supine Rest Necessary before Blood Sampling for Plasma Metanephrines?

Jacques W.M. Lenders, Jacques J. Willemsen, Graeme Eisenhofer et al. · Clinical Chemistry · 2007 · 118 citations · Full text

Medicine, Endocrinology, Clinical Pharmacology +12

Effects of Insulin on Vascular Tone and Sympathetic Nervous System in NIDDM

Cees J. Tack, Paul Smits, Jacques J. Willemsen et al. · Diabetes · 1996 · 115 citations · Full text

Medicine, Endocrinology, Physiology +15

Highly sensitive and specific HPLC with fluorometric detection for determination of plasma epinephrine and norepinephrine applied to kinetic studies in humans

Jacques J. Willemsen, H A Ross, M.‐C. Jacobs et al. · Clinical Chemistry · 1995 · 93 citations

Pharmacy, Pharmacology, Analytical Toxicology +8

Stability of Urinary Fractionated Metanephrines and Catecholamines during Collection, Shipment, and Storage of Samples

Jacques J. Willemsen, H A Ross, Jacques W.M. Lenders et al. · Clinical Chemistry · 2006 · 74 citations · Full text

Medicine, Biochemistry, Endocrinology +10