TY - RPRT TI - ECHO-9 virus exanthema. AU - J T PRINCE AU - J W GEME AU - W F SCHERER PY - 1958 DO - 10.1001/jama.1958.02990230017002 UR - https://pubmed.ncbi.nlm.nih.gov/13538749/ ID - 13538749 ER -