The new approach attacks the molecular mechanism by which tumors get their oxygen supply.

FORBES: Targeting Tumors

That means they, too, can be used to generate singlet oxygen, given the right molecular intermediary.

ECONOMIST: Medicinal light-swords

"We strongly believe if we can identify molecular pathways controlling healthy response to low oxygen, we can develop new ideas for treating COPD, " Dr. Roach says.

WSJ: Mayo Clinic Researchers on Everest Study High Altitude's Effects on the Body