No.	Searches	Results
1	(clinic or clinical or “electronic health record” or “electronic health records”).mp.	10,297,015
2	(“coreference resolution” or “co-reference resolution” or “information extraction” or “named entity extraction” or “named entity recognition” or “natural language processing” or “relation extraction” or “text mining”).mp.	10,981
3	“information retrieval”.mp.	29,773
4	(1 and 2) not 3	3,245
5	limit 4 to English language	3,204
6	limit 5 to yr=“2009 -Current”	2,480
7	limit 6 to (editorial or erratum or letter or note or comment) [Limit not valid in Embase, Ovid MEDLINE(R), Ovid MEDLINE(R) In-Process; records were retained]	36
8	6 not 7	2,444
9	remove duplicates from 8	1,651