message: If data-receiver quantity dont have any unit, show nothing in dropdown list
diff: @@ -113,5 +113,5 @@ export const getHyperlinkTargetvalue = (extensions: Extension[]): HyperlinkTarge
  export const getQuantityUnit = (extensions: Extension[]): string | undefined => {
  const unit = extensions.filter((f: Extension) => f.url === IExtentionType.questionnaireUnit);
  - return unit[0].valueCoding?.code;
  + return unit.length > 0 ? unit[0].valueCoding?.code : undefined;
  };
  