6BENEDETTO A V, MILLIKAN L E. World survey of mineral water and spas-mineral water and spas in the United State[J ].Clinics in Dermatology, 1996,14:637 - 639.
7LOVERSEED H. Health and spa tourism North America[ J ]. Travel and Tourism Analyst, 1998(1) :46 - 66.
8ALEST( International Association of Scientifie Experts in Tourism ).From traditional spa tourism to modern forms of health tourism[J ].Travel Research,1990,28 (3):38-39.
9KASPAR C. A new lease for spa and health tourism[J ]. Annals of Tourism Research, 1985,17(2) :298 - 299.
