The tolerance of coffee drinkers to caffeine.
D001919:Bradycardia / Q000139:chemically induced; D002110:Caffeine / Q000494:pharmacology*; D002319:Cardiovascular System / Q000187:drug effects; D003069:Coffee; D004361:Drug Tolerance; D005260:Female; D006339:Heart Rate / Q000187:drug effects; D006801:Humans; D007785:Lactose / Q000494:pharmacology; D008297:Male; D011674:Pulse / Q000187:drug effects; D012890:Sleep / Q000187:drug effects
D003069:Coffee; D002110:Caffeine; D007785:Lactose