Waldek, J.F.; Hellig, H.R.; De Kock, V.E.; Bigalke, R.D.; Cameron, Colin McKenzie; Verster, Anna J.M.; Walker, Jane B.(Pretoria : The Government Printer, 1974)
Female mice were injected with a suspension of 0, 2 ml of 10 per cent v/v sheep red blood cells
(SRBC) and sacrificed on the 5th day for recording of spleen mass and assay of plaque-forming cells
(PFCs) in the spleens. ...
