Samsell B, Moore M, Bertasi G, Spinato S, Bernardello F, Rebaudi A, Sfasciotti GL, Powers R. Are bone allografts safe and effective for today's dental practitioner? Dentistry. 2014 Nov 3;4(9):1000260. doi: 10.4172/2161-1122.1000260
McKenna SP, Doward LC. How should we measure quality of life in ankylosing spondylitis? Rheumatol Pract. 2008;6(2):12-4.