I read about them a few years back and thought nothing of it because I don't smoke (tobacco or pot). You see them in the ad in the back of magazines but I've seen them advertised in more mainstream stuff.
Basically they heat the herb to the point that releases the chemicals (THC, nicotine, etc.) without burning it and chemically changing it.
It's safer, which is better, but I don't think it's completely safe.
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Chiari 1 malformation - successful surgery 1-22-09
C5-6 herniation (extrusion) with moderate central canal stenosis and bilateral foraminal stenosis.
Prodisc-C @ C5-6 surgery on 5/28/09
VATS thoracic fusion @ T3-4 and T6-7 on 9/11/09
Fusion w/cage @ C7-T1 on 11/12/09
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