000 00287nam a2200097Ia 4500
008 220809s2004 xx 000 0 und d
041 _aeng
245 _aMedical Clinics of North America: Sleep disorders Vol.88, No.3, May 2004
260 _aPhiladelphia
_bWBS
_c2004
520 _aBack Volume
999 _c162733
_d162733