000 004920000a22001450004500
001 11990
090 _a11990
100 _a20190520 frey50
101 _aeng
200 0 1 _aCholera in Portugal : 1974
_fPedro Soares Ferreira... [et al.]
210 _a[S.l.]
_c1977
_dUS Department of Health, Education and Welfare. Public Health Service
215 _a7 p.
_cil.
_d30 cm
305 _aSep. de: American Journal of Epidemiology, 105 (4), p. 337-343
317 _aIPIMAR
701 _aFerreira,
_bPedro Soares