1. Rep Lab Clin Stress Res No. 31;HPT Ammon,1973
2. Araki S (1978) The effects of water restriction and water loading on urinary excretion of lead, ?-aminolevulinic acid and coproporphyrin. Br J Ind Med 35:312?317
3. Araki S (1980) Effects of urinary volume on urinary concentrations of lead, ?-aminolaevulinic acid, coproporphyrin, creatinine, and total solutes. Br J Ind Med 37:50?54
4. Axelrod J, Reichenthal J (1953) The fate of caffeine in man and a method for its estimation in biological material. J Pharmacol Exp Ther 107:519?523
5. Åkerstedt T, Fröberg JE (1979) Sleep and stressor exposure in relation to circadian rhythms in catecholamine excretion. Biol Psychol 8:69?80