The source said that at this time , neither Cohen nor the ear , nose and throat doctor have been accused of wrongdoing by investigators . NEW : Clinic says it made changes requested by accreditation group after Rivers ' death . Dr. Gwen Korovin `` categorically denies '' what a source tells CNN . The source says that Korovin joked that Rivers would 've thought selfie was funny . Comment:
NEW : Clinic says it made changes requested by accreditation group after Rivers ' death . Dr. Gwen Korovin `` categorically denies '' what a source tells CNN . The source says that Korovin joked that Rivers would 've thought selfie was funny . Comment: