Our study was inspired by a previous smaller study by @LundJenny together with @dceaarhus. Although (much) smaller and a more selected population, they also found validity to be high. #replication https://t.co/mJnTyhtBIt

Validity of the Danish National Registry of Patients for chemotherapy reporting among colorectal cancer patien... http://t.co/dZhYvA9iSz