EXHIBIT 11 STATEMENT RE: COMPUTATION OF PER SHARE EARNINGS For the three months ended Weighting factor MARCH (in months) ----- ----------- 1997 1996 1997 1996 ---- ---- ---- ---- Issuance of common stock, June 1993 375,000 375,000 3 3 Sale of common stock, October 1993 125,000 125,000 3 3 Sale of common stock, March 1995 1,250,000 shares 1,250,000 1,250,000 3 3 Issuance of shares in conjunction with public offering(11,500) 11,500 10,500 3 3 Sale of common stock through the issuance of options and warrants in prior periods 631,854 24,766 3 3 Shares issued upon exercise of options and warrants 15,667 -- SEE BELOW N/A --------- --------- Common stock and equivalents 2,409,021 1,785,266 ========= ========= 1997 ---- Computation of weighted average number of shares issued upon exercise of options and warrants: Three months weighting factor Shares (in days) DATE ISSUED 1997 ---- ------ ---- 1/31/97 23,500 15,667 Total 15,667 ======