TY - RPRT TI - A quantitative protozoan bio-assay method for determining venom potencies. AU - B D Johnson AU - J C Tullar AU - H L Stahnke PY - 1966 DO - 10.1016/0041-0101(66)90078-x UR - https://pubmed.ncbi.nlm.nih.gov/5951147/ ID - 5951147 ER -