CORD-19:12f1cc78e99a0b82f3225d10abe9a5649f1b33fc / 5409-5662 JSON TXT

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Id	Subject	Object	Predicate	Lexical cue
T29	0-253	Sentence	denotes	Virus-infected cells were frozen and thawed three times, the supernatant fluid was cleared of cell debris by centrifugation, the virus was concentrated by overnight centrifugation, and the virus pellet was resuspended in phosphate-buffered saline (PBS).

Id	Subject	Object	Predicate	Lexical cue
TextSentencer_T29	0-253	Sentence	denotes	Virus-infected cells were frozen and thawed three times, the supernatant fluid was cleared of cell debris by centrifugation, the virus was concentrated by overnight centrifugation, and the virus pellet was resuspended in phosphate-buffered saline (PBS).