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. 2006 Feb 27;148(1):70–77. doi: 10.1038/sj.bjp.0706698

Figure 1.

Figure 1

(a) A brightfield photomicrograph showing an injection that is considered to be within the RVLM. The scale bar=500 μm. (b) Schematic representation of sites of microinjections in 10 rats that received microinjections. Each square represents an injection that is considered to be within the RVLM; each circle represents an injection that is considered to be outside the RVLM. Amb, ambiguous nucleus; IRt, intermediate reticular nucleus; LPGi, lateral paragigantocellular nucleus; PCRt, parvocellular reticular nucleus; RVLM, rostral ventrolateral medulla. The drawing is modified from Paxinos & Watson (1986).