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Strategies for Policy in Science & Education / Strategii na Obrazovatelnata i Nauchnata Politika; 2023 Special Issue, Vol. 31 Issue 4s, p191-202, 12p
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Vutreshni bolesti [Vutr Boles] 1990; Vol. 29 (3), pp. 122-6.Publisher: T︠s︡entur za informat︠s︡ii︠a︡ po medit︠s︡ina Country of Publication: Bulgaria NLM ID: 0032666 Publication Model: Print Cited
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Problemi na khigienata [Probl Khig] 1990; Vol. 15, pp. 112-20.Publisher: Izdaca natsionalniiat tsentur po khigiena, meditsinska ekologiia i khranene Country of Publication: Bulgaria NLM ID: 7703299 Publication Model: