1. Cross-tolerance between spinal neostigmine and morphine in the rat
S.A. Dunbar, I.G. Karamian 
British Journal of Anaesthesia 
Volume 91, Issue 3, Pages (September 2003)
DOI: /bja/aeg187
Copyright © 2003 British Journal of Anaesthesia Terms and Conditions

2. Fig 1
(a) Daily paw withdrawal latencies in saline (S), morphine (M), and neostigmine (M) treated animals indicating that all groups are not different by day 6. Morphine and neostigmine dose–response curves in S, M, and N treated animals are shown in (b) and (c), respectively. *Significance vs saline group.
British Journal of Anaesthesia  , DOI: ( /bja/aeg187)
Copyright © 2003 British Journal of Anaesthesia Terms and Conditions