Investigation of the natural supplement IQP‑AS‑119 for the prevention of upper respiratory tract infections in marathon race participants: A randomized, double‑blind, placebo‑controlled pilot study
2019 ◽
Vol 102
(6)
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pp. 4783-4797
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1998 ◽
Vol 7
(6)
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pp. 541-545
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1979 ◽
Vol 6
(2)
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pp. 142-147
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2018 ◽
Vol 38
(1)
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pp. 40-50
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1979 ◽
Vol 7
(4)
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pp. 302-304
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