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7Determination of the frequency and stability of isonicotinic acid derivatives, Pharmaceutical Chemistry Journal Chromatographic Analysis of Isoniconitic Acid Hydrazide Derivatives, Russian Journal of Applied Chemistry Comparison of the effects of isoniazid derivatives on the development of young animals on a diet deficient in vitamin B4, Bulletin of Experimental Biology and Medicine Analysis of ??sulan in ointments by high-performance liquid chromatography, Pharmaceutical Chemistry Journal Gas-chromatographic analysis of pyridinecarboxylic acids on the basis of their pyrolysis products, Pharmaceutical Chemistry Journal Study of the structure and reactivity of nitrogen-containing derivatives of carbonyl compounds, Bulletin of the Academy of Sciences of the USSR, Division of chemical science Pufemid, a new home-produced antiepileptic drug, Pharmaceutical Chemistry Journal