text: import React from 'react'
  import {Route, Redirect} from 'react-router-dom'
  import Nas from './Nas.js'
  import Foster from './Foster.js'
  import Opioid from './Opioid.js'
  const App = () => (
    <div>
      <main>
        <Route exact path="/" component={() => <Redirect to="/nas" />} />
        <Route exact path="/nas" component={Nas} />
        <Route exact path="/foster" component={Foster} />
        <Route exact path="/opioid" component={Opioid} />
      </main>
    </div>
  )
  
  export default App
  