Heart block /
Cosby, Richard S.
Heart block / Richard S. Cosby, Michael Bilitch. - New York : McGraw-Hill Book Co., 1972. - ix, 251 p. ill.
Heart block
Medicine--Heart
Heart block / Richard S. Cosby, Michael Bilitch. - New York : McGraw-Hill Book Co., 1972. - ix, 251 p. ill.
Heart block
Medicine--Heart