TY - RPRT TI - Systemic cellular hypersensitivity induced by an intestinally absorbed antigen. AU - J L Perrotto AU - L M Hang AU - K J Isselbacher AU - K S Warren PY - 1974 DO - 10.1084/jem.140.1.296 UR - https://pubmed.ncbi.nlm.nih.gov/4857866/ ID - 4857866 ER -