000 00278nam a2200121Ia 4500
003 LDD
040 _cLDD
041 _aen
245 0 _aBritish Medical Jounral
260 _aLondon
_bBMJ Publishing Group Ltd
_c1 May-31 May,2002
362 _a324-324
_b7345-7348
942 _2ddc
_cJ
999 _c191760
_d191760