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Free Androgen Index (FAI) is a ratio used to determine abnormal androgen status in humans. The ratio is the total testosterone level divided by the sex hormone binding globulin (SHBG) level, and then multiplying by a constant, usually 100.
Psoriasis in the mouth is very rare, in contrast to lichen planus, another common papulosquamous disorder that commonly involves both the skin and mouth. [28] When psoriasis involves the oral mucosa (the lining of the mouth), it may be asymptomatic, [ 28 ] but it may appear as white or grey-yellow plaques. [ 28 ]
Almost forgot: REgarding Superm401's question - yes, some air will redissolve back into the water when it cools, but the difference is that the rate of freezing is significantly higher than the rate at which the air dissolves. --HappyCamper 03:24, 3 December 2005 (UTC) (exdenting for readability) Quiz question: Why are icicles clear?