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11Kalvins Ivars; Astapenok Elena. Pharmaceutical composition and method for treating tumors susceptible to 2-carbamoylaziridine. US4686215, 11.08.1987.      

12Kalvins Ivars; Bremanis Gunars; Antsena Irene; Lukevics Edmunds; Veveris Maris; Erenshtein Marina; Mikazans Valdis; Kauss Valerjans; Liepins Edvards; Trapencieris Peteris. 3-(2,2,2-trisubstituted hydrazinium) propionates. DE3418652, 17.09.1987.      

13Kalvins Ivars; Bremanis Gunars; Antsena Irene; Lukevics Edmunds; Veveris Maris; Erenshtein Marina; Mikazans Valdis; Kauss Valerjans; Liepins Edvards; Trapencieris Peteris. 3-(2,2,2-trisubstituted hydrazinium) propionates. US4704403, 03.11.1987.      

14Kalvins Ivars; Erenshtein Marina; Bremanis Gunars; Mikazhan Valdis; Veveris Maris; Lukevits Edmunds; Pule Edit; Birmans Anatolijs. Anti-hypertensive compositions containing pyrazole derivatives. DE3418651, 05.11.1987.      

15Veveris Maris; Lukevics Edmunds; Kalvins Ivars; Erenshtein Marina; Bremanis Gunars; Mikazans Valdis; Pule Edit; Birmans Anatolijs. Pharmaceutical preparation for the treatment of hypertensive disease and myocardial infarction. DE3418651, 05.11.1987.      

16Kalvins Ivars; Erenshtein Marina; Bremanis Gunars; Mikazhan Valdis; Veveris Maris; Lukevits Edmunds; Pule Edit; Birmans Anatolijs. Anti-hypertensive compositions containing pyrazole derivatives. CA1229553, 24.11.1987.      

17Veveris Maris; Lukevics Edmunds; Kalvins Ivars; Erenshtein Marina; Bremanis Gunars; Mikazans Valdis; Pule Edit; Birmans Anatolijs. Pharmaceutical preparation for the treatment of hypertensive disease and myocardial infarction. CA1229553, 24.11.1987.      

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