@article{doi:10.1302/0301-620X.85BSUPP_III.0850257, author = {Hell and Anna, K. and Ruehmann, O. and Peters, G. and Lazovic, D.}, title = {INTER- AND INTRAOBSERVER DIFFERENCES IN THE ASSESSMENT OF HIP ULTRASONOGRAPHY (GRAF METHOD)}, journal = {Orthopaedic Proceedings}, volume = {85-B}, number = {SUPP_III}, pages = {257-257}, year = {2003}, doi = {10.1302/0301-620X.85BSUPP_III.0850257}, url = {https://doi.org/10.1302/0301-620X.85BSUPP_III.0850257} }