TY - RPRT TI - C.N.S. involvement after smallpox revaccination. AU - N C Thalassinos AU - P Contoyannis PY - 1973 DO - 10.1016/s0140-6736(73)90449-2 UR - https://pubmed.ncbi.nlm.nih.gov/4122057/ ID - 4122057 ER -