id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
cord-353608-de6rrf7v	Saito, Sho	First and second COVID-19 waves in Japan: A comparison of disease severity and characteristics: Comparison of the two COVID-19 waves in Japan	2020-11-02		.txt	text/plain	983	37	47	However, the mortality was lower in second wave even if stratifying age and severity at admission. Earlier admission of patients in the second wave may reflect the increase in the number of PCR tests performed and the number of beds available to COVID-19 patients.	cache/cord-353608-de6rrf7v.txt	txt/cord-353608-de6rrf7v.txt
