liquid human serum

liq·uid hu·man se·rum

the pool of fluids separated from blood withdrawn from human subjects and allowed to clot in the absence of any anticoagulant; not more than 10 separate donations are pooled; the contributions from donors of A, O, and either B or AB groups are represented in approximately the ratio 9:9:2.
Farlex Partner Medical Dictionary © Farlex 2012

liq·uid hu·man se·rum

(likwid hyūmăn sērŭm)
Pool of fluids separated from blood withdrawn from human subjects and allowed to clot in the absence of any anticoagulant.
Medical Dictionary for the Dental Professions © Farlex 2012
References in periodicals archive ?
Using liquid human serum samples, the situation is quite different.