J. M. van der Valk

Personality structure and conflict situation in patients with myocardial infarction.

J. Groen, J. M. van der Valk, 1967, Journal of psychosomatic research.

A case of malignant hypertension, treated with prefrontal leucotomy and psychotherapy, followed for over eight years.

J. Groen, J. Bastiaans, J. M. van der Valk, 1957, Journal of Psychosomatic Research.

[Organization, scope and a few of the results of the activity of the Psychosomatic Section of the Wilhelmina-Gasthuis in Amsterdam].

J. Groen, J. Bastiaans, J. M. van der Valk, 1950, Nederlands tijdschrift voor geneeskunde.

Psychosomatic aspects of ulcerative colitis.

J. Groen, J. M. van der Valk, 1956, The Practitioner.

Psychobiological factors in the pathogenesis of essential hypertension.

D. Ben-ishay, A. Welner, J. Groen, 1971, Psychotherapy and psychosomatics.