Edward Ringel, MD
Disclosures: Authors have disclosed no conflicts of interest. Forms can be viewed at www.acponline.org/authors/icmje/ConflictOfInterest Forms.do?msNum=L14-0498.
Ringel E. Maintenance of Certification. Ann Intern Med. ;162:77. doi: 10.7326/L15-5040-2
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Published: Ann Intern Med. 2015;162(1):77.
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