Ardinata, D., Department of Physiology, Faculty of Medicine, Universitas Sumatera Utara, Medan, Indonesia; Zain-Hamid, R., Department of Pharmacology and Therapeutics, Faculty of Medicine, Universitas Sumatera Utara, Medan, Indonesia; Roesyanto-Mahadi, I.D., Department of Dermatology and Venereology, Faculty of Medicine, Universitas Sumatera Utara, Medan, Indonesia; Mihardja, H., Department of Medical Acupuncture, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia