J. Leeuwen

Where Risks and Protective Factors Operate Differently: Homeless Sexual Minority Youth and Suicide Attempts

N. E. Walls, J. V. Van Leeuwen, J. V. Leeuwen, 2009 .

The influence of different Ca and P supplies on the vitamin A, Cu and Mn status of young cattle with additional effects of growth and season.

J. Leeuwen, J. J. V. Kluijve, 1971 .

Hospitalization and Its Meaning to the Child and His Family

J. V. Leeuwen, J. Leeuwen, 1977 .