000			00286nas a22001217a 4500
008			190318s9999 xx 000 0 und d
022			_a0025-7125
245			_aMedical Clinics of North America :Sleep Medicine
260			_aUSA
260			_bSAUNDERS
260			_c2010
300			_a198p
999			_c72856 _d72856