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.

Q:  There was no association between the distance of the residence from the Khimprom plant during the pregnancy and subsequent serum dioxin levels .

A: serum
****
Q:  Lactotransferrin inhibits ADP - induced platelet aggregation at concentrations down to 5 nM , which can be reached in the plasma after leukocyte degranulation .

A: plasma
****
Q:  It was concluded that when the MLP - NN is used within the range studied , the optimized NN is able to estimate the beta - carotene and lycopene concentrations in food samples with an adequate accuracy , solving the UV - vis interference of beta - carotene and lycopene .

A:
samples
****