Complications and Outcome of Infective Endocarditis
UpToDate January, Spelman, D. & Sexton, D., 2012
Surgery on the Rheumatoid Cervical Spine for the Non-Ambulant Myelopathic Patient-Too Much, Too Late
Lancet 347:1004-1007, Casey,A.T.H.,et al, 1996
Atlanto-Axial Subluxation in Rheumatoid Arthritis
Bone & Joint Surg 55B:458973., Rana,N.S., 1973