The medical anesthesi-ology references focuses on the receiver ^-opioid similar to morphine and its derivatives, although some studies have also focused on the there are the others focused on the agonist κ-opioid receptor.
La literatura está dirigida al receptor μ de opioides, que se encuentra relacionado con la morfina y derivados, ya que el resto se relacionan con el receptor agonista κ de opioides.