@misc{indiciaec56023b4b1e5, title = {Rheumatoid factor in bladder tumors.}, author = {N P Gupta and A N Malaviya and S M Singh}, year = {1978}, doi = {10.1016/s0022-5347(17)57142-6}, url = {https://pubmed.ncbi.nlm.nih.gov/682245/}, note = {Source identifier: 682245} }