MSH|^~\&|gunther@plocus|hl7test|foehring@anae|hl7test|||ACK|HLA-B27|P|2.1|0001|abc
MSA|AA|bla|Hello World: this is \E\S\E\: `\S\' \X0102030D0A30313233\
ERR|Code1~Code2~Code3~Code4~~Code5~~Code6~~""~""~~~Code7