"serum" refers to a liquid that contains important substances or components. It is usually found in the blood and can be used for medical purposes, such as diagnosing diseases or providing treatments. Full definition
It even increases the level of serum testosterone in men. (fitnessandpower.com)
The results revealed that these women had a decrease in serum levels of vitamin C ranging from 30 percent to 42 percent. (virginiahopkinstestkits.com)
It is very important to control the phosphorus level in patients with renal disease, and unfortunately dietary restriction is usually inadequate for controlling serum levels of phosphorus. (youngagainpetfood.com)