{
  "id": 19259,
  "label": "rheumatoid factor-negative juvenile idiopathic arthritis",
  "model": {
    "label": "Mondo Disease Ontology (MONDO)",
    "source": 0
  },
  "type_id": 0,
  "reference_id": "MONDO:0019432",
  "properties": {
    "xrefs": [
      "EFO:1002020",
      "GARD:0003931",
      "MEDGEN:855549",
      "Orphanet:85408",
      "UMLS:C3890205"
    ],
    "synonyms": [
      "juvenile rheumatoid factor-negative polyarthritis",
      "polyarthritis without rheumatoid factor",
      "rheumatoid factor-negative JIA"
    ],
    "categories": [
      {
        "ref": "MONDO:0002081",
        "name": "musculoskeletal system disorder"
      },
      {
        "ref": "MONDO:0003900",
        "name": "connective tissue disorder"
      }
    ],
    "definition": "Rheumatoid factor-negative polyarthritis is a term used to describe a group of poorly defined heterogenous conditions that incorporates forms of rheumatoid factor-negative polyarthritis and forms of oligoarticular arthritis that become extensive in less than 6 months after onset."
  },
  "isLeaf": false,
  "isRoot": false,
  "child_count": 2,
  "parents": [
    {
      "id": 18498,
      "label": "polyarticular juvenile idiopathic arthritis",
      "isLeaf": false,
      "isRoot": false,
      "parents": [
        12534
      ],
      "type_id": 0,
      "properties": {
        "xrefs": [
          "EFO:0009730",
          "GARD:0021729",
          "MEDGEN:1622195",
          "Orphanet:404580",
          "SCTID:16044751000119106",
          "UMLS:C4521004"
        ],
        "synonyms": [
          "juvenile polyarthritis",
          "juvenile polyarticular arthritis",
          "polyarticular JIA"
        ],
        "categories": [
          {
            "ref": "MONDO:0002081",
            "name": "musculoskeletal system disorder"
          },
          {
            "ref": "MONDO:0003900",
            "name": "connective tissue disorder"
          }
        ]
      },
      "child_count": 2,
      "reference_id": "MONDO:0018456"
    }
  ],
  "children": [
    {
      "id": 17101,
      "label": "rheumatoid factor-negative juvenile idiopathic arthritis with anti-nuclear antibodies",
      "isLeaf": true,
      "isRoot": false,
      "parents": [
        19259
      ],
      "type_id": 0,
      "properties": {
        "xrefs": [
          "GARD:0025081",
          "Orphanet:247854"
        ],
        "synonyms": [
          "juvenile rheumatoid factor-negative polyarthritis with anti-nuclear antibodies",
          "polyarthritis without rheumatoid factor with anti-nuclear antibodies",
          "rheumatoid factor-negative JIA with anti-nuclear antibodies"
        ],
        "categories": [
          {
            "ref": "MONDO:0002081",
            "name": "musculoskeletal system disorder"
          },
          {
            "ref": "MONDO:0003900",
            "name": "connective tissue disorder"
          }
        ]
      },
      "child_count": 0,
      "reference_id": "MONDO:0016617"
    },
    {
      "id": 17102,
      "label": "rheumatoid factor-negative juvenile idiopathic arthritis without anti-nuclear antibodies",
      "isLeaf": true,
      "isRoot": false,
      "parents": [
        19259
      ],
      "type_id": 0,
      "properties": {
        "xrefs": [
          "GARD:0025082",
          "Orphanet:247861"
        ],
        "synonyms": [
          "juvenile rheumatoid factor-negative polyarthritis without anti-nuclear antibodies",
          "polyarthritis without rheumatoid factor without anti-nuclear antibodies",
          "rheumatoid factor-negative JIA without anti-nuclear antibodies"
        ],
        "categories": [
          {
            "ref": "MONDO:0002081",
            "name": "musculoskeletal system disorder"
          },
          {
            "ref": "MONDO:0003900",
            "name": "connective tissue disorder"
          }
        ]
      },
      "child_count": 0,
      "reference_id": "MONDO:0016618"
    }
  ],
  "roots": [
    {
      "id": 18498,
      "label": "polyarticular juvenile idiopathic arthritis"
    }
  ]
}