id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-018944-du42ho11	Shin, Jeong Hwan	Nucleic Acid Extraction and Enrichment	2018-11-10		.txt	text/plain	6857	355	41	[6, 7] as follows: (1) extraction should be simple and rapid and should show high sensitivity and specificity; (2) it is preferred that there be no requirements for specialized equipment or special knowledge and skills; (3) the final nucleic acid should be pure and easy to modify for various amplification techniques; (4) the reagents and their product should be harmless; and (5) the process of preparation should resist contamination with other specimens. Although the phenolchloroform method is relatively easy compared with the CsCl/EtBr gradient and is very useful for the extraction of nucleic acids, it also is problematic for the clinical microbiology laboratory because phenol has important limitations due to its being toxic, caustic, and flammable [5, 15, 16] . In recent years, it has become possible to extract viral nucleic acid from clinical specimens having cellular components, and there have been trials of these commercially available kits to detect various clinically important viruses [30] [31] [32] .	./cache/cord-018944-du42ho11.txt	./txt/cord-018944-du42ho11.txt