000 00298 a2200109 4500
005 20220416073537.0
022 _a00144215
245 _aPublic health,social medicine and hygiene
260 _aAmsterdam
_bAssociation Scientific Publishers
_c1976
490 _aExcerpta medica
_vVol.27
942 _2lcc
_cCR
999 _c19015
_d19015