I think you misunderstood: I said it dates to 1997 because that's when it was first approved for use in America. It's not that new in cancer therapy, with R-CH

I think you misunderstood: I said it dates to 1997 because that's when it was first approved for use in America. It's not that new in cancer therapy, with R-CHOP (the CHOP protocol plus Rituxan) apparently being introduced in the early 2000s: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9036549/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9036549/