Vitamin C as a requirement for the storage of norepinephrine by the iris.
D000818:Animals; D001206:Ascorbic Acid Deficiency / Q000378:metabolism*; D003228:Conjunctiva / Q000502:physiology; D006168:Guinea Pigs; D007498:Iris / Q000378:metabolism*; D007700:Kinetics; D009638:Norepinephrine / Q000378:metabolism*; D014316:Tritium
D014316:Tritium; D009638:Norepinephrine