3Christopher J, Earley MB. Restless legs syndrome[ J ]. New En2gl J Med ,2003,37 ( 3 ) :2103 -2109.
4Alien RP,Picchietti D, Hening WA,et al. Restless legs syndrome : diagnostic criteria, special considerations, and epidemiology. A re- port from the restless legs syndrome diagnosis and epidemiology workshop at the National Institutes of Health[ J]. Sleep Med,2003, 4(2) :101 -119.
