disease control and prevention center. the guidelines stipulate that residents with respiratory infections should avoid going to public places and if they do under unavoidable circumstances, they must wear masks. people are advised to wash their hands frequently when processing raw meat, poultry, or aquatic...
rd، نويسنده , issue information : دوهفته نامه با شماره پیاپی سال pages : from page : to page : abstract : in aquatic birds, high body burdens of persistent organic pollutants (pops) have been associated with developmental effects related to growth, increased fluctuating wing asymmetry, and disruption...