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. Author manuscript; available in PMC: 2006 Mar 29.
Published in final edited form as: Pain. 2003 Jun;103(3):285–302. doi: 10.1016/s0304-3959(02)00457-8

Fig. 5.

Fig. 5

Intact females: effects of estrous stage on morphine antinociception on the 50°C hotplate test in sham-GDX females (D, diestrus-1; P, proestrus; E, estrus). Each point is the mean ± 1 SEM of seven to eleven rats.