How many over the counter allergy medications different from prescription allergy medications? a. over the counter allergy medications are illegal b. a physician must write an order for over the counter allergy

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?