Erythropoiesis in women during 11 days at 4,300 m is not affected by menstrual cycle phase.
Reeves JT, Zamudio S, Dahms TE, Asmus I, Braun B, Butterfield GE, McCullough RG, Muza SR, Rock PB, Moore LG. Erythropoiesis in women during 11 days at 4,300 m is not affected by menstrual cycle phase. J Appl Physiol (1985). 2001 Dec; 91(6):2579-86.