[Portable 1m optotype for the determination of visual errors in small children].
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Age Factors↗
Biomedical subjects
J Ryba
Publications and source records attributed to J Ryba.
[Plummer-Vinson syndrome with familial occurrence].
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Adult↗
[Culicidae entomofauna in Isla de la Juventud].
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Cuba↗
[Entomological methods for field investigations on arbovirus in Cuba].
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Animals↗
[Continuous ambulatory peritoneal dialysis].
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Adolescent↗