by Kok, F J, Van Duijn, C M, Hofman, A, Van der Voet, G B, De Wolff, F A, Paays, C H, Valkenburg, H A
Published in American journal of epidemiology (01.08.1988)

by Wensink, J, Paays, C H, van den Hamer, C J
Published in Biological trace element research (01.10.1987)

by Geelen, Math J.H., Beynen, Anton C., Paays, Clay H.C.
Published in International journal of biochemistry (1991)