Electroacupuncture-Induced Dynamic Processes of Gene Expression Levels of Endogenous Opioid Peptide Precursors and Opioid Receptors in the CNS of Goats
Figure 1
Pain threshold of goats stimulated by EA (mean ± SD, %, ). The same letter indicated that no significant difference between pain thresholds at two different time points (), and different letters indicated significant difference ().
