http://hl7.org/fhir/StructureDefinition/entryFormat|4.0.1

Additional instructions for the user to guide their input (i.e. a human readable version of a regular expression like \"nnn-nnn-nnn\"). In most UIs this is the placeholder (or 'ghost') text placed directly inside the edit controls and that disappear when the control gets the focus.
{
  "description": "Additional instructions for the user to guide their input (i.e. a human readable version of a regular expression like \\\"nnn-nnn-nnn\\\"). In most UIs this is the placeholder (or 'ghost') text placed directly inside the edit controls and that disappear when the control gets the focus.",
  "package": "hl7.fhir.r4.core@4.0.1",
  "date": "2014-04-27T00:00:00Z",
  "derivation": "constraint",
  "publisher": "Health Level Seven International (FHIR Infrastructure)",
  "fhirVersion": "4.0.1",
  "name": "entryFormat",
  "mapping": [ {
    "uri": "http://hl7.org/v2",
    "name": "HL7 v2 Mapping",
    "identity": "v2"
  }, {
    "uri": "http://hl7.org/v3",
    "name": "RIM Mapping",
    "identity": "rim"
  } ],
  "abstract": false,
  "type": "Extension",
  "experimental": null,
  "resourceType": "StructureDefinition",
  "fhirversion": null,
  "title": null,
  "versionAlgorithmCoding": null,
  "extension": [ {
    "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg",
    "valueCode": "fhir"
  }, {
    "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm",
    "valueInteger": 1
  } ],
  "status": "draft",
  "id": "bc80e024-2f67-5e24-bfd5-766a866970b5",
  "kind": "complex-type",
  "url": "http://hl7.org/fhir/StructureDefinition/entryFormat",
  "identifier": null,
  "context": [ {
    "type": "element",
    "expression": "Questionnaire.item"
  }, {
    "type": "element",
    "expression": "ElementDefinition"
  } ],
  "versionAlgorithmString": null,
  "fhir_id": null,
  "version": "4.0.1",
  "contact": [ {
    "telecom": [ {
      "value": "http://www.hl7.org/Special/committees/fiwg",
      "system": "url"
    } ]
  } ],
  "baseDefinition": "http://hl7.org/fhir/StructureDefinition/Extension"
}