The term radioimmunoassay is identified in base64 scheme by the sequence cmFkaW9pbW11bm9hc3NheQ==, while the MD5 signature is equal to a1bcdd246e055f632bcf61f4992dce4e. The ASCII encoding of radioimmunoassay in hexadecimal notation is 726164696f696d6d756e6f6173736179.