000 00349nam a2200109Ia 4500
008 160509s9999 xx 000 0 und d
100 _aBritish Medical Journal
245 _aBritish Medical Journal : 1999 : Volume 319(7201- 7207),319(s) : Shelf 4.8
260 _bBritish Medical Association
_c1999
300 _a460p.
650 _aBritish Medical Journal
999 _c6851
_d6851