000 00278nam a2200121Ia 4500
003 LDD
040 _cLDD
041 _aen
245 0 _aBritish Medical Jounral
260 _aBMJ Publishing Group Ltd
_bLondon
_c5 Apr-13 Jun,2008
362 _a336-336
_b7647-7656
942 _2ddc
_cJ
999 _c179758
_d179758