000 00325nam a22001337a 4500
003 OSt
005 20191226220354.0
008 160401b xxu||||| |||| 00| 0 eng d
245 _aThe bmj .
260 _aUSA :
_bBMJ publishing group ,
_c2015 .
300 _a36 p.
_bill.
_c27 cm.
505 _g14 February 2015.
942 _2NLM
_cJR
999 _c5797
_d5797