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PubMed:23429918 / 839-843
Annnotations
yangbin123xm_800_3
{"project":"yangbin123xm_800_3","denotations":[{"id":"T4","span":{"begin":0,"end":4},"obj":"DP"}],"text":"COPD"}
chenxin_473849_800_3
{"project":"chenxin_473849_800_3","denotations":[{"id":"T12","span":{"begin":0,"end":4},"obj":"DP"}],"text":"COPD"}