8[1]Terman M,Terman J S.Treatment of seasonal affectic disorder with a high-output negative ionizer[J].Journal of altercomplement Med,1995,1 (1):87-92.
9[2]Ryushi T,Kita I,Sakuratiotetal.The effect of exposure to negative air ions on the recovery of physiological responses after moderate endurance exercise[J].Int J Biometeorol,1998,4 (3):132-136.
10[3]Watanabe I,Noro H,Ohtsuka Yetal.Physical effects of negative airrions in a wet sauna[J].Int J Biometeorol,1997,40 (2):107-112.