f:Bundle entry: minimum cardinality of 'entry' is 3 entry: maximum cardinality of 'entry' is 3 Bundle entry.search only when a search (inherited) total only when a search or history (inherited) FullUrl must be unique in a bundle, or else entries with the same fullUrl must have different meta.versionId (inherited) entry.request only for some types of bundles (inherited) entry.response only for some types of bundles (inherited) Cannot have no more than 1 patient in one message (inherited) First entry must be a MessageHeader (inherited) GroupIdentifier values must all be the same within a message (inherited) First entry must be a MessageHeader with the messageheader-901 profile Second entry must be an OperationOutcome Bundle.entry must be a resource unless there's a request or response (inherited) The fullUrl element must be present when a resource is present, and not present otherwise (inherited) Full URL must end with resource id when present (inherited)