moderately significantP<0.05
The studies were numbered 1? 2? 3, 4a and 4b, each containing one or Repriiits fi-on-i the 'NIJIC Lettkaemia 17iilt, Royal Postgraduate Atedical Sebool, London, W12 MEDICAL RESEARCH COUNCIL two dozen patients, and when Studies 2, 3 and 4a, all of which involved a similar form of immunotherapy, were pooled, the apparent effects of immunotherapy on duration of first remission and on survival were moderately significant statistically (P<0.05).