Treatment of internal rotation contracture of the shoulder in obstetric brachial plexus lesions by subscapular tendon lengthening and open reduction: early results and complications. - van der Sluijs,J.A.; van Ouwerkerk,W.JR.; de Gast,A.; Nollet,F.; Winters,H.; Wuisman,P.IJM. (J Pediatric Orthop B, 2004)