000 00278nam a2200121Ia 4500
003 LDD
040 _cLDD
041 _aen
245 0 _aBritish Medical Jounral
260 _aLondon
_bBMJ Publishing Group Ltd
_c1 Jul-31 Aug,1995
362 _a311-311
_b6996-7004
942 _2ddc
_cJ
999 _c191695
_d191695