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. Author manuscript; available in PMC: 2015 May 14.
Published in final edited form as: Respir Physiol Neurobiol. 2013 Jul 23;189(1):136–143. doi: 10.1016/j.resp.2013.07.007

Fig. 1.

Fig. 1

Arterial blood-gas chemistry and Alveolar-arterial (A-a) gradient values prior to administration of morphine, 30 min after injection of morphine (2 mg/kg, i.v.) and 5 min after each injection of vehicle or L-cysteine ethylester (L-CYSee, 100 μmol/kg, i.v.) in non-tracheotomized rats. The data are presented as mean ± SEM. There were 5 rats in each group.*P < significant effect of morphine. †P < 0.05, L-CYSee values versus saline values.