?:authorAffiliation
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[\'Providence Veterans Affairs Medical Center, Providence, RI; Miriam Hospital Cardiac Rehabilitation Center, Providence, RI; Alpert Medical School, Brown University, Providence, RI.\', \'Providence Veterans Affairs Medical Center, Providence, RI.\', \'Iowa City VA Healthcare System, Veterans Rural Health Resource Center-Central Region, VA Office of Rural Health, Iowa City, Iowa.\', \'Providence Veterans Affairs Medical Center, Providence, RI; Miriam Hospital Cardiac Rehabilitation Center, Providence, RI; Alpert Medical School, Brown University, Providence, RI. Electronic address: wen-chih_wu@va.gov.\']
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