Joe Franklin attends Lincoln High School, a large urban school near the apartment he shares with his parents and two sisters. On weekends he likes to get together with half a dozen longtime friends to hike, play cards, or listen to music. Identify a primary group, a secondary group, a voluntary group, and an involuntary group that Joe belongs to.

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