title: Rebuttal to the pro statement.
authors.affiliation: 1 Zurich Center for Integrative Human Physiology (ZIHP), University of Zurich , Zurich, Switzerland .
authors.forename: Robert A
authors.initials: RA
authors.lastname: Jacobs
mesh_terms: D000531:Altitude; D054874:Athletic Performance / Q000502:physiology*; D006801:Humans; D064797:Physical Conditioning, Human / Q000502:physiology*; D012111:Residence Characteristics