000 00343nam a2200109Ia 4500
008 160509s9999 xx 000 0 und d
100 _aBritish Medical Journal
245 _aBritish Medical Journal : 1994 : Volume 309(6958-6969) : Shelf 4.7
260 _bBritish Medical Association
_c1994
300 _a1748p.+
650 _aBritish Medical Journal
999 _c5806
_d5806