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ClinicalCodes: An Online Clinical Codes Repository to Improve the Validity and Reproducibility of Research Using Electronic Medical Records

Table 2

Distribution per year of the number of papers using PCDs with full sets of code lists available or codes available on request in a random sample of 374 papers in a PubMed search.

Table 2

doi: https://doi.org/10.1371/journal.pone.0099825.t002