The circulating cell-free nucleic acids (ccfNAs) consist of a heterogenous cocktail of both single (ssNA) and double-stranded (dsNA) nucleic acids. These ccfNAs are secreted into the blood circulation by both healthy and malignant cells via various mechanisms including apoptosis. necrosis. and active secretion. https://www.roneverhart.com/Ludwig-P2230B-Imperial-Tension-Lug-for-Snare-Drums-p9792/