PMC:7340764 / 4739-4957 JSONTXT

{"project":"LitCovid-PD-CLO","denotations":[{"id":"T27","span":{"begin":98,"end":110},"obj":"http://purl.obolibrary.org/obo/OBI_0000245"}],"text":" National Health Services (NHS) in United Kingdom was set up and the constitution of World Health Organization (WHO) came into force, both in year 1948 [9, 10]. The successive governments continued to expand the networ"}