<https://pubs.asahq.org/anesthesiology/issue/67/3>
<http://schema.org/datePublished>
"1987-09-01"^^<http://schema.org/Date>
<https://pubs.asahq.org/anesthesiology/article/67/3/A543/45446/SUBANESTHETIC-CONCENTRATIONS-OF-HALOTHANE-AND>