• From the Assyrian Church of the East
• Chaldean
• Syro-Malabar
• From the Oriental Orthodox churches
• Armenian
• Coptic
• Ethiopian/Eritrean
• Syriac
• Syro-Malankara
• Churches with no Orthodox counterpart
• Maronite
• Italo-Albanian
• From the Orthodox Church
• Melkite
• Ukrainian
• Ruthenian
• Romanian
• Greek
• in former Yugoslavia
• Bulgarian
• Slovak
• Hungarian
• Other communities

Ronald G. Roberson, C.S.P., holds a doctorate from the Pontifical Oriental Institute in Rome. From 1988 to 1992, he was a staff member of the Pontifical Council for Promoting Christian Unity, serving as a liaison to the Orthodox churches. Father Roberson now lives at St. Paul’s College in Washington, D.C., and is associate director of the Secretariat for Ecumenical and Interreligious Affairs at the United States Conference of Catholic Bishops.

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