[ON THE EFFECT OF METEREOLOGICAL AND HELIO-PHYSICAL FACTORS ON THE COURSE AND OUTCOME OF CARDIOVASCULAR DISEASES].
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Cardiovascular Diseases↗
Biomedical subjects
B A RYVKIN
Publications and source records attributed to B A RYVKIN.
[SOME PROBLEMS CONCERNING THE COURSE OF CROUPOUS PNEUMONIA DURING THE PAST FEW YEARS. (REVIEW OF THE LITERATURE)].
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Humans↗
[ON THE PROBLEM OF THE STATISTICAL RECORDING OF MYOCARDIAL INFARCT].
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Humans↗
[Hygenic conditions in tractor shops].
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Agriculture↗
[Some errors in standard projects of tractor work-shops].
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Agriculture↗