Impact of dietary nitrate supplementation on exercise capacity and cardiovascular parameters in chronic respiratory disease: a systematic review and meta-analysis by Michael I Polkey, Nicholas S Hopkinson, Saeed M Alghamdi, Ali M Alasmari, Abdullah S Alsulayyim

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Acute Dietary Nitrate Supplementation and Exercise Performance in COPD: A Double-Blind, Placebo-Controlled, Randomised Controlled Pilot Study. by Katrina J Curtis, Katie A O'Brien, Rebecca J Tanner, Juliet I Polkey, Magdalena Minnion, Martin Feelisch, Michael I Polkey, Lindsay M Edwards, Nicholas S Hopkinson

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Circulating testosterone levels and health outcomes in chronic obstructive pulmonary disease: results from ECLIPSE and ERICA by Divya Mohan, Carmel M McEniery, Marie Fisk, Joseph Cheriyan, Bruce E Miller, Ruth Tal-Singer, Michael I Polkey, Charlotte E Bolton, Holly Pavey, Ian Wilkinson, Richard Casaburi

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Physical Activity Characteristics across GOLD Quadrants Depend on the Questionnaire Used. by Heleen Demeyer, Elena Gimeno-Santos, Roberto A Rabinovich, Miek Hornikx, Zafeiris Louvaris, Willem I de Boer, Niklas Karlsson, Corina de Jong, Thys Van der Molen, Ioannis Vogiatzis, Wim Janssens, Judith Garcia-Aymerich, Thierry Troosters, Michael I Polkey, PROactive consortium

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