552,812 NIETOSVAARA YRJÄNÄ Acute patellar dislocation in children and adolescents s academic dissertation / Yjrana Nietosvaara ; from the Aurora Hospital and the Department of Orthopaedics and Traumatology, Helsinki University, Medical Faculty of the University of Helsinki. -Helsinki s [University Printing House], 1996. - 57, [27] s. : il., wykr. ;25 cm ISBN 952-90-7471-9