{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://rig.works/schemas/rig.clinic.criterion.schema.json",
  "title": "rig.clinic.criterion",
  "type": "object",
  "additionalProperties": false,
  "properties": {
    "trial": {
      "$ref": "./_defs.schema.json#/$defs/entity"
    },
    "text": {
      "$ref": "./_defs.schema.json#/$defs/string"
    },
    "code": {
      "$ref": "./_defs.schema.json#/$defs/string"
    },
    "polarity": {
      "type": "string",
      "enum": [
        "include",
        "exclude"
      ]
    }
  },
  "required": [
    "trial",
    "text"
  ],
  "description": "One eligibility rule of a trial. polarity absent = include.",
  "x-rig-maturity": "draft"
}