Exhibit 12

STATEMENT OF COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES

	Years Ended December 31,
	1999			2000			2001			2002			2003
Earnings:
Loss before provision for income taxes	$	(5,117,067	)	$	(4,518,327	)	$	(5,710,243	)	$	(5,086,563	)	$	(5,797,650	)
Fixed charges		95,416			155,163			295,293			383,357			365,445
	$	(5,021,651	)	$	(4,363,164	)	$	(5,414,950	)	$	(4,703,206	)	$	(5,432,205	)
Fixed charges:
Interest expense	$	—		$	3,455		$	33,485		$	125,181		$	109,889
Estimate of interest portion of rent expense		95,416			151,708			261,808			258,176			255,556
	$	95,416		$	155,163		$	295,293		$	383,357		$	365,445
Deficiency of earnings available to cover fixed charges	$	(5,117,067	)	$	(4,518,327	)	$	(5,710,243	)	$	(5,086,563	)	$	(5,797,650	)
Ratio of earnings to fixed charges*		—			—			—			—			—

* Because of the deficiency of earnings available to cover fixed charges, the ratio information is not applicable.