Clinical anesthesia : Nitrous Oxide / 
Clinical anesthesia : Nitrous Oxide / 
 - Philadelphia :  F. A. Darvis 
 - V. 
<br/><br/>V.1 Nthous Oxide 
<br/><br/><label>Subjects--Topical Terms: </label><br/>ANETESIOLOGIA<br/>OXIDO DE NITROGENO