000 00330nas a2200109 a 4500
008 151013s9999 xx 000 0 und d
245 _aMmwrrecorepo
260 _aJSTOR
505 _a1989-06-16 - 2011-05-06
650 _aHealth Sciences;Public Health
856 _uhttp://www.jstor.org/action/showPublication?journalCode=mmwrrecorepo
999 _c21228
_d21228