Through this Notice of Funding Opportunity (NOFO), the National Cancer Institute (NCI) intends to support extramural research to investigate and mitigate challenges facing clinical assay development and subsequent analytical validation due to preanalytical variability in tumor tissue biopsies, blood biospecimens utilized as liquid biopsies", or other biospecimens as described in this NOFO. Extramural research funded under this NOFO may include investigations of preanalytical variability associated with the pr...