Response to Millet and Debevec re: “The Effect of an Expiratory Resistance Mask With Dead Space on Sleep,Acute Mountain Sickness,Cognition,and Ventilatory Acclimatization in Normobaric Hypoxia,” by Patrician et al. and “Global REACH 2018: The Effect of an Expiratory Resistance Mask with Dead Space on Sleep and Acute Mountain Sickness During Acute Exposure to Hypobaric Hypoxia” by Carr et al.

Carr J , Stone R , Tymko C , Tymko K , Coombs GB , Hoiland RL , Howe CA , Tymko MM , Ainslie PN , and Patrician A . (2020). Global REACH 2018: The effect of an expiratory resistance mask with dead space on sleep and acute mountain sickness during acute exposure to hypobaric hypoxia. High Alt Med Biol, 21:297–302.

Millet G , and Debevec T . (2020a). Re: “The Effect of an Expiratory Resistance Mask With Dead Space on Sleep, Acute Mountain Sickness, Cognition, and Ventilatory Acclimatization in Normobaric Hypoxia,” by Patrician et al. and “Global REACH 2018: The Effect of an Expiratory Resistance Mask with Dead Space on Sleep and Acute Mountain Sickness During Acute Exposure to Hypobaric Hypoxia”. by Carr et al. High Alt Med Biol [Epub ahead of print]; DOI: 10.1089/ham.2020.0093.

Millet GP , and Debevec T . (2020b). CrossTalk proposal: Barometric pressure, independent of PO2, is the forgotten parameter in altitude physiology and mountain medicine. J Physiol, 598:893–896.

Patrician A , Tymko MM , Caldwell HG , Howe CA , Coombs GB , Stone R , Hamilton A , Hoiland RL , and Ainslie PN . (2019). The effect of an expiratory resistance mask with dead space on sleep, acute mountain sickness, cognition, and ventilatory acclimatization in normobaric hypoxia. High Alt Med Biol, 20:61–70.

Richalet JP . (2020). CrossTalk opposing view: Barometric pressure, independent of PO2, is not the forgotten parameter in altitude physiology and mountain medicine. J Physiol, 598:897–899.