Translations:Basic Field Epi: Course Resource Book/365/en
Data on cases and non-cases may show that most cases occurred in one paddock or in one age-group of animals.
Data on cases and non-cases may show that most cases occurred in one paddock or in one age-group of animals.
Halaman ini terakhir diubah pada 26 Agustus 2014, pukul 20.18.