1. Partial absence of ulna and associated structure;Southwood;V. Anat.,1927
2. Congenital absence of the ulna;Roth;Lancet,1914
3. Congenital defects of ulna;Lausecker;Arch. path. Anat.,1954
4. Reconstruction of elbow and bone graft of rudimentary ulna;Goddu;New England J. Med.,1930
5. Congenital absence of ulna;Laurin;Canad. J. Surg.,1959