1. Cleanliness and godliness or the further metamorphosis;Reynolds,1976
2. Nocturnal leg muscle cramps;Weiner;JAMA,1980
3. Bilateral calf pain;Katerndahl;Postgrad Med,1981
4. Cramps in the legs and feet;Cutler;JAMA,1984
5. Cramps, stiffness and restless legs;Whitely;Practitioner,1982