000 00272nam a2200121Ia 4500
003 LDD
040 _cLDD
041 _aen
245 0 _aBritish Medical Jounral
260 _aLondon
_bBMJ Publishing Group Ltd
_c1 Dec-31 Dec,1999
362 _a0
_b7323-7325
942 _2ddc
_cJ
999 _c191736
_d191736