TY - GEN AU - Sutton,M G TI - Diagnostic contribution of echocardiography SN - 0140-6736 PY - 1982///0527 KW - Costs and Cost Analysis KW - Echocardiography KW - economics KW - Evaluation Studies as Topic KW - Heart Diseases KW - diagnosis KW - Humans N1 - Publication Type: Letter UR - https://doi.org/10.1016/s0140-6736(82)91831-1 ER -