The term epidural anaesthesia is identified in base64 scheme by the sequence ZXBpZHVyYWwgYW5hZXN0aGVzaWE=, while the MD5 signature is equal to 85c1bb07ffb2100104881492bd84fff3. The ASCII encoding of epidural anaesthesia in hexadecimal notation is 657069647572616c20616e616573746865736961.