The term congenital heart defect is identified in base64 scheme by the sequence Y29uZ2VuaXRhbCBoZWFydCBkZWZlY3Q=, while the MD5 signature is equal to 15c98d6d1ce8fc1c6bcf796049f0b862. The ASCII encoding of congenital heart defect in hexadecimal notation is 636f6e67656e6974616c20686561727420646566656374.