TY - RPRT TI - Poliomyelitis-virus flocculation by a micro-method. AU - W SMITH AU - G CHURCHER AU - F W SHEFFIELD AU - L H LEE PY - 1956 DO - 10.1016/s0140-6736(56)91693-2 UR - https://pubmed.ncbi.nlm.nih.gov/13347105/ ID - 13347105 ER -