PMC:7473770 / 6956-7099
Annnotations
LitCovid-sentences
{"project":"LitCovid-sentences","denotations":[{"id":"T34","span":{"begin":0,"end":143},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"However, this requires careful optimization of photon energy, illumination function, and phase retrieval algorithms, as detailed further below."}