Incidence and symptoms of high altitude illness in south pole workers: Antarctic Study of Altitude Physiology (ASAP) - Anderson, P J; Miller, A D; O'Malley, K A; Ceridon, M L; Beck, K C; Wood, C M; Wiste, H J; Mueller, J J; Johnson, J B; Johnson, B D (Clin Med Insights Circ Respir Pulm Med, 2011)