TY - RPRT TI - Purification and characterization of streptococcal proliferative factor. AU - E O Rasmussen AU - K D Wuepper PY - 1981 DO - 10.1111/1523-1747.ep12480148 UR - https://pubmed.ncbi.nlm.nih.gov/6168708/ ID - 6168708 ER -