Is vitamin D status reflected by testosterone concentration in elite athletes? by Jarosław Krzywański, Andrzej Pokrywka, Marcel Młyńczak, Tomasz Mikulski

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GENES IN SPORT AND DOPING by Andrzej Pokrywka, Paweł Kaliszewski, Edyta Majorczyk, Agnieszka Zembroń-Łacny

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THE ROLE OF SALIVARY IMMUNOGLOBULIN A IN THE PREVENTION OF THE UPPER RESPIRATORY TRACT INFECTIONS IN ATHLETES - AN OVERVIEW by Joanna Orysiak, Jadwiga Malczewska-Lenczowska, Zbigniew Szyguła, Andrzej Pokrywka

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Evaluation of the use of glucocorticosteroids by athletes in Poland in the light of the amended anti-doping regulations by Andrzej Pokrywka, Daria Berezovska, Sylwia Lewandowska-Pachecka, Michał Rynkowski, Raphael Faiss, Jarosław Krzywański

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Herbal medicine for sports: a review by Maha Sellami, Olfa Slimeni, Andrzej Pokrywka, Goran Kuvačić, Lawrence D Hayes, Mirjana Milic, Johnny Padulo

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Does sodium bicarbonate based extra-cellular buffering support reduce high intensity exercise-induced fatigue and enhance short-term recovery assessed by selected blood biochemical... by Krzysztof Durkalec-Michalski, Joanna Kamińska, Bryan Saunders, Andrzej Pokrywka, Igor Łoniewski, Michal Steffl, Tomasz Podgórski

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Pertussis outbreak in Polish shooters with adverse event analysis by Monika Skrzypiec-Spring, Jarosław Krzywański, Monika Karlikowska-Skwarnik, Andrzej Pokrywka, Hubert Krysztofiak, Aneta Nitsch-Osuch, Ernest Kuchar

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Hematological status and endurance performance predictors after low altitude training supported by normobaric hypoxia: a double-blind, placebo‑controlled study by Dariusz Sitkowski, Zbigniew Szygula, Olga Surała, Joanna Orysiak, Ryszard Zdanowicz, Andrzej Pokrywka, Michał Starczewski, Jadwiga Malczewska-Lenczowska

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