@misc{indiciae1b4822bc06ce, title = {[Bf groups in ankylosing spondylitis].}, author = {A Gaucher and C Raffoux and G Faure and P Netter and G Hauptmann and J Pourel and F Streiff}, year = {1980}, url = {https://pubmed.ncbi.nlm.nih.gov/6906047/}, note = {Source identifier: 6906047} }