000 00290 a2200109 4500
005 20220422013107.0
022 _a0143005x
245 _aJournal of epidemiology and community health
260 _aLondon
_bBritish medical association
_c1998
490 _aTropical medicine
_v52
942 _2lcc
_cCR
999 _c19799
_d19799