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Biotech / Medical : QLT PhotoTherapeutics (QLTI)

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To: Barron Von Hymen who wrote (286)	3/22/1998 12:54:00 PM
From: John O'Neill	Read Replies (1) of 1321

I new to the thread..the article discussing frequents of light (630 vs 730) the end reads...... Furthermore, tissue treated with 730 nm light alone (without PHOTOFRIN(R)) showed no detectable adverse effect. These results were made possible using Photogen's proprietary simultaneous two-photon activation process, which allows use of activation wavelengths that more easily penetrate tissue. Photogen's activation process further enables three dimensional control over the activation site.>> What is "Photogen"? part of QLTIF??do they have the "proprietary tech?) JO

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