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https://media2.intercer.net/brasovcantacuzino/2015_09_12_dr_George_Guthrie_Nicolae_Dan.mp3
http://www.youtube.com/v/glotvXl68Dg?version=3&f=user_uploads&app=youtube_gdata Vezi mai mult la sursa: Dr. Gheorghita – Pe urmele Succesului Material preluat la Intercer de la Uploads by Respiro pentru tineri.
Sursa: https://www.youtube.com/watch?v=LVEboUO5y-w
Dr. Nicolae Dan – Naturism – Emisiune SperantaTV Sursa: https://www.youtube.com/watch?v=4d1q5Xe6nMY