1Arpels JC.The female brain hypoestrogenic continuum from the premenstrual syndrome to menopause. A hypothesis and review of supporting data[J] .J Reprod Med, 1996, 41 (9): 633-639.
3Krauchi K. Cajochen C, Wirz-Justice A. A relationship between heat loss and sleepiness: effects of postural change and melatonin administration[J] .J Appl Physiol , 1997, 83 (1): 134- 139.