новая развивающаяся медицинская технология
grey literature
Alternative spelling: gray literature The documents published for a limited audience, outside the major distribution channels, and difficult to find in the usual databases, such as presentations at conferences, health technologyAlternative spelling: gray literature The documents publishe... assessments done by hospitals, and certain government documents. Note: There is a lack of unanimity on the definition of grey literatureAlternative spelling: gray literature The documents publishe..., as the boundaries of this literature continually shift and evolve as new technical means are developed.