PMC:7784828 / 8493-8547
Annnotations
LitCovid-sentences
{"project":"LitCovid-sentences","denotations":[{"id":"T82","span":{"begin":0,"end":54},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Challenges facing the current drug development process"}