"hospital planes" from the early days of air travel?

A few years ago, I either saw or read something about the idea that during the early days of air travel, people had this idea that being in the sky was “close to heaven.” With this in mind, they devised “hospital planes” that would carry the sick up in the sky, with the idea that they would be cured by being closer to divinity.

Does anyone know anything about this? I’ve done extensive googling, but haven’t been able to find any info about it.

Web searches for "hospital planes’ will result in lots of such.
All that I ever heard of, i.e. medivac, lifestar, and other named 'copters are now used extensivelly for moving accident victims to the er asap. Sometimes conventional aircraft is used for long distance transfer of patients.
As for high altitude flight ‘treatment’ is most likely urban legend or myth cooked up by someone desperate for attention.

Early flight attendants were required to be nurses. They were trained to treat folks for altitude sickness, it was thought flying a 6 to 8000 feet could cause health problems.
My $75 membership fee to the Museum of Flight finally pays off!!!