Randomised double-blind trial of quinine sulphate for nocturnal leg cramp.
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D002986:Clinical Trials as Topic; D004311:Double-Blind Method; D006801:Humans; D007866:Leg; D009120:Muscle Cramp / Q000188:drug therapy*; D011803:Quinine / Q000627:therapeutic use*; D011897:Random Allocation
D011803:Quinine