The term venous blood system is identified in base64 scheme by the sequence dmVub3VzIGJsb29kIHN5c3RlbQ==, while the MD5 signature is equal to 5dedd51dbf4659940eaf14c20eed52a9. The ASCII encoding of venous blood system in hexadecimal notation is 76656e6f757320626c6f6f642073797374656d.