Office address:
 5 - 7 Vinitza St.
 1111 Sofia,
 Bulgaria
 Tel.: +359 2 971 2139
 Fax: +359 2 971 3358
 Mail address:
 PO Box 522, Central Post Office
 1000 Sofia,
 Bulgaria
 Internet address:
 web site: www.medcogc.org
 e-mail: pobox@medcogc.org