Bourke, D L The steady-state and rebreathing methods compared during morphine administration in humans. [electronic resource] - The Journal of physiology Dec 1989 - 509-17 p. digital Publication Type: Comparative Study; Journal Article ISSN: 0022-3751 Standard No.: 10.1113/jphysiol.1989.sp017883 doi Subjects--Topical Terms: AdultCarbon Dioxide--pharmacologyHumansInjections, IntravenousMaleMorphine--administration & dosageRespiration--drug effects