E&J Medical Center Offers Surgery for Hernia and Hydrocele Patients August 1, 2017 on Health, Nimba by Arrington Ballah E&J Medical Center Offers Surgery for Hernia and Hydrocele Patients August 1, 2017 on Health, Nimba by Arrington Ballah The Esther & Jereline Koung Medical Center in Ganta, Nimba County is conducting free surgeries for more than 150 persons.