New reference charts for testicular volume in Dutch children and adolescents allow the calculation of standard deviation scores
S.D. Joustra
,
E.M. van der Plas
,
J. Goede
,
W. Oostdijk
,
H.A. Delemarre - van de Waal
,
W.W.M. Hack
,
S. van Buuren
,
J.M. Wit