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H. Harbach,
B. Moll,
R.-H. Boedeker,
U. Vigelius-Rauch,
H. Otto,
J. Muehling,
G. Hempelmann
and P. Markart
(2007).
Minimal immunoreactive plasma β-endorphin and decrease of cortisol at standard analgesia or different acupuncture techniques. European Journal of Anaesthesiology,
24
,
pp 370-376
doi:10.1017/S0265021506001906