1. Relation of sexual behavior and ejaculation frequency to severity of vertebral body osteophytes in dairy and beef bulls;Almquist;J. Am. Vet. Med. Assoc.,1973
2. The locomotor system;Archibald,1962
3. Vertebral osteophytes in the cat;Beadman;Vet. Rec.,1964
4. HLA-B27 and the inheritance of susceptibility to rheumatic disease;Brewerton;Arthritis Rheum.,1976
5. Ankylosing spondylitis;Calabro;N. Engl. J. Med.,1970