1. Nocturnal leg muscle cramps;Weiner;JAMA,1980
2. Cramp: A review;Joekes;J R Soc Med,1982
3. Quinine for “Night Cramps.”;Med Lett Drugs Ther,1986
4. Placebo-controlled trial of quinine therapy for nocturnal leg cramps;Fung;West J Med,1989
5. Treatment of nocturnal leg cramps. A crossover trial of quinine vs vitamin E;Connolly;Arch Intern Med,1992