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Anecdotal evidence: my wife and I take periodic trips from a few hundred meters altitude to 3000-4000m (and sometimes over a pass at 4480m). We feel that going a little as one weekend per month pro...
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Anecdotal evidence: my wife and I take periodic trips from a few hundred meters altitude to 3000-4000m (and sometimes over a pass at 4480m). We feel that going a little as one weekend per month pro...