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If multiple EVS REFs exist in the Kmehrmessage, all EVS REFs are removed and the new EVS REF is put in the instructionforpatient field.
Likewise, if no EVS REF existedexists, the new EVS REF is also put in the instructionforpatient field.
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If multiple EVS REFs exist in the Kmehrmessage, all EVS REFs are removed and the new EVS REF is put in the instructionforpatient field.
Likewise, if no EVS REF existedexists, the new EVS REF is also put in the instructionforpatient field.
...