Activity_visited_medical_staff__c false EventC_ID__r.Visitor1__c & "," & EventC_ID__r.Visitor2__c & "," & EventC_ID__r.Visitor3__c & "," & EventC_ID__r.Visitor4__c & "," & EventC_ID__r.Visitor5__c BlankAsZero 访问对象人 false false Text false