R. J. J. Koopman

Rapid diagnosis of acute meningococcal infections by needle aspiration or biopsy of skin lesions.

Marcel van Deuren, Beatrix J van Dijke, R. J. J. Koopman et al. · BMJ · 1993 · 105 citations · Full text

Tenascin expression in hyperproliferative skin diseases

Joost Schalkwijk, I.M.M.J. van Vlijmen, BRIGIT OOSTERLING et al. · British Journal of Dermatology · 1991 · 78 citations

Autoimmune Disease, Scleroderma, Allergy +14

Hypothesis: vascular twin naevi and somatic recombination in man

Rudolf Happle, R. J. J. Koopman, P. D. MIER · The Lancet · 1990 · 56 citations

Genetic Disorder, Genetics, Morphogenesis +5

Production losses in laying hens during infestation with the poultry red mite <i>Dermanyssus gallinae</i>

Nathalie Sleeckx, Stefaan Van Gorp, R. J. J. Koopman et al. · Avian Pathology · 2019 · 51 citations · Full text

Drinking Water, Engineering, Fitness +14

Concept of twin spotting.

R. J. J. Koopman · PubMed · 1999 · 41 citations

Twin Spots Consist, Genetics, Dermatoglyphic +9