000 00342nam a2200109Ia 4500
008 160509s9999 xx 000 0 und d
100 _aBritish Medical Journal
245 _aBritish Medical Journal : 1987 : Volume 294(6563-6586) : Shelf 4.7
260 _bBritish Medical Association
_c1987
300 _a1708p.
650 _aBritish Medical Journal
999 _c4225
_d4225