1. Centers of ossification of the skeleton;Girdany;Am J Roentgenol Radium Ther Nucl Med,1952
2. The Oxford method of assessing skeletal maturity;Acheson;Clin Orthop,1957
3. Diagrammatic chart showing time of appearance of various centers of ossification and period of union;Camp;Am J Roentgenol,1931
4. Roentgenographic observations of the times of appearance of epiphyses and their fusion with the diaphyses;Flecker;J Anat,1932
5. The iliac apophysis; an invaluable sign in the management of scoliosis;Risser;Clin Orthop,1958