301,078 KRUCZYŃSKI JACEK Avascular necrosis of the proximal femur in developmental dislocation of the hip : incidence, risk factors, sequelae and MR imaging for diagnosis and prognosis / Jacek Kruczyński ; from the Department of Orthopaedics, Karol Marcinkowski University of Medical Sciences, Poznań, Poland. - [Oslo etc.] : Scandinavian University Press, 1996. - 48 s. : il. ; 25 cm (Acta Orthopaedica Scandinavica, ISSN 0300-8827 ; vol. 67, suppl. 268)