Opening the Mississippi River to commerce was especially important to .

Whether or not a given study has the possibility of causing harm to participants:

The specific department of health and human services (hhs) regulations that apply to research with children are known as: subpart b: additional protections for children involved as subjects in researchsubpart a: the common rulesubpart d: additional protections for children involved as subjects in researchsubpart c: protections for children in research

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