Find any four families in your locality, who
have recently migrated from other places. Ask
them about the causes of their migration lastly
this
have to write the conclusion of this activity

Investigator a has biological specimens that are coded and linked to identifiers of the source individuals. investigator a provides the specimens to investigator b but does not provide the individual identifiers. investigator b agrees not to re-identify the source individuals. is investigator b's research using the biospecimens human subjects research according to the definition of human subjects research in the federal regulations?