The 18th session of the permanent working group of socialist countries on space biology and medicine of the Interkosmos space program, May 27-31, 1985, Gagra, Abkhaz ASSR. From left: representative of the Vietnamese part of the working group, Dr. Ngo Hoang Long, and Director of the Higher Military Medical Institute of the Republic of Cuba, Aristófanes O'Reilly Diaz, during a break between sessions.
