Initially, nonspecific assays were applied to measuring drugs in biological fluids.

Wine as a biological fluid: history, production, and role in disease prevention.

Biorheology is the study of the flow properties of biological fluids.

Ethylene glycol in biological fluids can be determined easily by gas chromatography.

The idea that biological fluids reflect the health of an individual has existed for a long time.

Blood is a biological fluid found in animals that delivers nutrients and oxygen throughout the body and carries away waste products.

A possible use of the integrated nanoliter system is in synthetic biology (controlling biological fluids).

Infectious, disease-causing microorganisms that may be found or transported in biological fluids.

They finally obtained search warrants after obtaining "biological fluids," although they refused to be more specific.