In a cohort study, why might you want to start by selecting a defined population for study, rather than starting by selecting exposed and non-exposed individuals?

How did the spanish prove to be excellent allies in the war? give examples?

Which quotation reflects the perspective of most of georgia legislatures in 1956 regarding the georgia state flag?

Alexander stephens’ opinion on secession and compromise led to what being written? a)the kansas-nebraska act b)the missouri compromise c)the u.s. constitution d)the georgia platform