TY - RPRT TI - Graphical method for evaluating antibody response to vaccines. AU - G R Siber AU - B J Ransil AU - G Schiffman PY - 1980 DO - 10.1128/iai.28.2.641-644.1980 UR - https://pubmed.ncbi.nlm.nih.gov/7399682/ ID - 7399682 ER -