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Cross sections and yields have been determined for some radionuclides, used in nuclear medicine ( 52 Fe, 77 Kr/ 77 Br, 82 Sr, 123 Xe/ 123 I, 128 Ba, 201 T1), in bombardment of targets with protons of energy < 100 MeV. The experimental cross sections are compared with the excitation functions calculated by the code ALICE in the energy range from the threshold to 100 MeV. At the end of bombardment the thick target yields were as follows (mCi/μΑ-Ιι, in the given energy range): for