The field of clinical chemistry has increasingly focused on the reliable management of biological samples and the stability of biomarkers throughout the preanalytical phase. Biomarker stability is ...

The collection of high-quality genomic DNA remains a major barrier in pediatric and neurodevelopmental research, particularly ...

Soil testing begins with the homeowner, gardener, and farmer. The most critical step in soil testing is soil sample collection. Soil testing can help growers make informed decisions about fertilizer ...

Stool samples can help doctors diagnose some health conditions. Tips for collecting a stool sample include urinating before collecting the sample and using any tools that the sample kit provides.