TY - GEN AU - Szopiński,Kazimierz AU - Słapa,Rafał Z TI - [Harmonic imaging in ultrasonography: basic concepts and applications] SN - 1426-9686 PY - 2003///0829 KW - Humans KW - Ultrasonography KW - instrumentation N1 - Publication Type: English Abstract; Journal Article; Review ER -