In a noteworthy move, Zhong Yi Optics has announced the 55mm f/2.8 1-5x Super Macro full-frame lens that comes in 11 different mounts. Designing a new lens that caters to both DSLRs and mirrorless ...

[Diagnostic value of clinical indices in syndrome differentiation of chronic hepatitis B: an exploration based on receiver operating characteristic curves and stepwise discriminant analysis].