000 00289nam a2200097Ia 4500
008 220809s1991 xx 000 0 und d
041 _aeng
245 _aPediatric Clinics of North America Vol.38, No.3, May-June 1991
260 _aPhiladelphia
_bWB Saunders Co
_c1991
520 _aBack Volume
999 _c158833
_d158833