title: [An attachment for the ECHO-21 equipment for biometry].
authors: N V
authors: NV
authors: Artem'ev
authors: V I
authors: VI
authors: Mel'nikov
authors: A D
authors: AD
authors: Chuprov
mesh_terms: D001699:Biometry / Q000295:instrumentation*; D004867:Equipment Design; D005123:Eye; D006801:Humans; D009885:Ophthalmology / Q000295:instrumentation*; D014465:Ultrasonics / Q000295:instrumentation
vernacular_title: Pristavka k apparatu EKHO-21 dlia biometrii.