The use of bone age in clinical practice - part 1 - Martin, D D; Wit, J M; Hochberg, Z; Savendahl, L; van Rijn, R R; Fricke, O; Cameron, N; Caliebe, J; Hertel, T; Kiepe, D; Albertsson-Wikland, K; Thodberg, H H; Binder, G; Ranke, M B (Horm Res Paediatr, 2011)