@misc{indiciae763f0169ceaf, title = {Rheumatoid factor in Iceland: a population study.}, author = {E Allander and O J Björnsson and A Kolbeinsson and O Olafsson and N Sigfússon and J Thorsteinsson}, year = {1972}, doi = {10.1093/ije/1.3.211}, url = {https://pubmed.ncbi.nlm.nih.gov/4669197/}, note = {Source identifier: 4669197} }