000 00265nam a2200097Ia 4500
008 220809s1994 xx 000 0 und d
041 _aeng
245 _aLancet Vol.343 No.8901-8913 April-June 1994
260 _aLondon
_bLancet Limited
_c1994
520 _aBack Volume
999 _c159689
_d159689