. "The chemical reactions and pathways resulting in the breakdown of DNA, involving the hydrolysis of internal 3',5'-phosphodiester bonds in one or two strands of deoxyribonucleotides." . . . "DNA catabolic process, endonucleolytic" . "DNA breakdown, endonucleolytic" . "DNA degradation, endonucleolytic" . "endonucleolytic degradation of DNA" . "endonucleolytic DNA catabolism" . . . . .