000 00319nas a22001217a 4500
008 190318s9999 xx 000 0 und d
022 _a0007-1420
245 _aBritish Medical Journal
260 _aOxford,UK
260 _bOxford university press
260 _c1998
300 _a403-486p.,487-562p.,563-638p.,639-714p.
999 _c105454
_d105454