28 Boulos Z, Macchi MM, Sturchler MP, Stewart KT, Brainard GC, Suhnuer A, Wallace G, Steffen R. Light visor treatment for jet lag after westward travel across six time zones. Aviat Space Environ Med 2002; 73(10): 953-63.

29 Sturgeon SR, Schairer C, Gail M, McAdams M, Brinton LA, Hoover RN. Geographic variation in mortality from breast cancer among white women in the United States. J Nat Cancer Inst 1995; 87.

30 Barrett RK, Takahashi JS. Lability of circadian pacemaker amplitude in chick pineal cells: a temperature-dependent process. J Biol Rhythms 1997; 12(4): 309-18.

31 Zatz M, Lange GD, Rollag MD. What does changing the temperature do to the melatonin rhythm in cultured chick pineal cells. Am J Physiol 1994; 266(1 Pt 2): R50-8.

32 Moyer RW, Firth BT, Kennaway DJ. Effect of constant temperatures, darkness and light on the secretion of melatonin by pineal explants and retinas in the gecko Christinus marmoratus. Brain Res 1995; 675(1-2): 345-8.

33 Medina-Leendertz S, Valero N, Chacin-Bonilla L, Anez F, Giraldoth D, Arias J, Espina G, Diaz S, Bonilla E. High intensity light increases olfactory bulb melatonin in Venezuelan equine encephalitis virus infection. Nerochem Res 2001; 26(3): 231-4.