Links to the publication that uses this kit:
Chiung-Hsiang Cheng et al., Endogenous Opiates in the Nucleus Tractus Solitarius Mediate Electroacupuncture-Induced Sleep Activities in Rats.Evidence-Based Complementary and Alternative Medicine Volume 2011 (2011), doi:10.1093/ecam/nep132
LTC Danette F. Cruthirds et al., Effects of Immobilization Stress and Hormonal Treatment on NociceptionAANA Journal, October 2011, Vol. 79, No. 5 375