Aleksanyan V.A, Zilfyan V.N, Mnatsakanyan A.G.
(Proceedings of the Yerevan State Institute for Advanced Training of Doctors, 1-1965)
Aleksanyan V.A, Zilfyan V.N, Mnatsakanyan A.G.
(Proceedings of the Yerevan State Institute for Advanced Training of Doctors, 1-1965)