TY - RPRT TI - Proceedings: Rheumatoid factor, so-called--what does it portend for the population? AU - E M Badley AU - J Ball AU - P H Wood PY - 1974 DO - 10.1136/jech.28.1.71-b UR - https://pubmed.ncbi.nlm.nih.gov/4816607/ ID - 4816607 ER -