PMC:7143804 / 4377-4501 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T39","span":{"begin":8,"end":117},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":" costs. Examples of these rather difficult methods are using heating via induction, infrared, or microwave radiation. Others"}