Assertion: total intravenous anesthesia | /r/HasProperty | attempted by sir christopher wren
Facets:
Source sentences:
text: Intravenous anesthesia (the injection of anesthetic directly into a patient's bloodstream) was first attempted by Englishmen Robert Boyle (1627-1691; chemist and physicist) and Sir Christopher Wren (1632-1723; famous architect) around 1659.