In this task, you are given a sentence. You are expected to write the name of the organism substances in the body mentioned in the input. Although there might be several correct answers, you need to write one of them.

 A simple method was developed for estimating serum glycosylated protein levels using gel filtration with Bio - Gel P6 by determining the protein and sugar content in the void volume fraction .
serum

 The placenta biopsy sample was collected at a depth of 1 cm and at a distance of 8 cm from the edge of the placenta , with the maternal side facing upward .
sample

 The normo - cholesterolaemic animals when fed with GG root powder at 10 gm % level , registered a significant decline in plasma lipid profiles and an increase in HDL - cholesterol content .

plasma

