7Casari A, Muttini S, Leggieri C, et al. Rapid turnover proteins in critically ill ICU patients. Minerva Anestesiol, 1998, 64: 345.
8Torres Y, Torres N. Advances in vitamin A and retinaid-binding proreins. Rev Invest Clin, 1995, 47: 149.
9Lindblad BS, Patel M, Hamadeh M, et al. Age and sex ere important factors in determing normal retinal levels. J Trop Pediatr, 1998, 44: 96.
10Sundaram M, Sivaprasadarao A, Desousa M, et al. The transfer of retinol from serum retinal hinding protein to cellular retinol binding protein is mediated by a membrane receptor. J Biol Chem, 1998, 273 :3336.