Sodium balance, fluid homeostasis and the renin-aldosteronsystem during the prolonged exercise of hill walking - Milledge, J S; Bryson, E I; Catley, D M; Hesp, R; Luff, N; Minty, B D; Older, M W; Payne, N N; Ward, M P; Withey, W R (Clin Sci (Lond), 1982)