PMC:7571312 / 130389-130524 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T717","span":{"begin":0,"end":135},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Crystallization plates were incubated at 13 °C, and crystals shaped as rectangular blocks measuring 0.1 × 0.2 × 0.2 mm3 grew overnight."}