TY - RPRT TI - [Methodologic aspects of polyechocardiography]. AU - N M Mukharliamov AU - G B Niu-Tian-de AU - Z Z Dorofeeva AU - Iu N Belenkov PY - 1985 UR - https://pubmed.ncbi.nlm.nih.gov/4082051/ ID - 4082051 ER -