The term spinal anaesthesia is identified in base64 scheme by the sequence c3BpbmFsIGFuYWVzdGhlc2lh, while the MD5 signature is equal to 1355ceab7b62b5c4e29703e09d278507. The ASCII encoding of spinal anaesthesia in hexadecimal notation is 7370696e616c20616e616573746865736961.