PMC:7795972 / 5019-5243 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T36","span":{"begin":31,"end":33},"obj":"Sentence"},{"id":"T37","span":{"begin":34,"end":55},"obj":"Sentence"},{"id":"T38","span":{"begin":57,"end":61},"obj":"Sentence"},{"id":"T39","span":{"begin":62,"end":80},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"es or psychological distress?\n\n2. Materials and Methods\n\n2.1. Survey Methodology\nA random selection of 81,170 individuals from a total of 224,000 adult inhabitants in Bergen, Norway, were invited to participate in a survey a"}