Text this: A Comparison of the external anatomical landmark and the radiological landmark for obtaining the optimal depth of a right internal jugular venous catheter in pediatric cardiac patients

   _____   _    _      _____   _    _     _  _   
  / ___// | || | ||   / ___// | || | ||  | \| || 
  \___ \\ | || | ||   \___ \\ | || | ||  |  ' || 
  /    // | \\_/ ||   /    // | \\_/ ||  | .  || 
 /____//   \____//   /____//   \____//   |_|\_|| 
`-----`     `---`   `-----`     `---`    `-` -`