Dietary nitrate supplementation enhances exercise capacity in WHO Group 3 pulmonary hypertension: a double-blind, placebo-controlled, randomised crossover study (EDEN-OX2) - Hopkinson, N; Polkey, M; Price, L; McCabe, C; Alasmari, A; Al, Sulayyim A; Alghamdi, S; Hudson, S; Rickman, M; Mitchell, J; Ahmetaj-Shala, B (Thorax, 2025)