Crossover Placebo to Drug

{
  "resourceType" : "ResearchSubject",
  "id" : "example-crossover-placebo-to-drug",
  "text" : {
    "status" : "generated",
    "div" : "<div xmlns=\"http://www.w3.org/1999/xhtml\"><p><b>Generated Narrative: ResearchSubject</b><a name=\"example-crossover-placebo-to-drug\"> </a><a name=\"hcexample-crossover-placebo-to-drug\"> </a></p><div style=\"display: inline-block; background-color: #d9e0e7; padding: 6px; margin: 4px; border: 1px solid #8da1b4; border-radius: 5px; line-height: 60%\"><p style=\"margin-bottom: 0px\">Resource ResearchSubject &quot;example-crossover-placebo-to-drug&quot; </p></div><p><b>identifier</b>: ecsr45</p><p><b>status</b>: active</p><p><b>period</b>: 2022-06-10 --&gt; (ongoing)</p><p><b>study</b>: <a href=\"broken-link.html\">example-ctgov-study-record</a></p><p><b>subject</b>: <a href=\"broken-link.html\">cfsb1676546565857</a></p><p><b>assignedComparisonGroup</b>: placebo</p><p><b>actualComparisonGroup</b>: ap303</p></div>"
  },
  "identifier" : [{
    "value" : "ecsr45"
  }],
  "status" : "active",
  "period" : {
    "start" : "2022-06-10"
  },
  "study" : {
    "reference" : "example-ctgov-study-record"
  },
  "subject" : {
    "reference" : "cfsb1676546565857"
  },
  "assignedComparisonGroup" : "placebo",
  "actualComparisonGroup" : "ap303"
}