Exhibit 14.1 BONE CARE INTERNATIONAL, INC. Schedule II Valuation and Qualifying Accounts and Reserves For the Years Ended June 30, 2002, 2001, and 2000 Beginning at Charged to Charged to Deductions Balance at beginning of costs and other and end of period expenses accounts other period ------ -------- -------- ----- ------ 2002: Allowance for doubtful accounts 100,000 40,007 -- 12,953 152,960 2001: Allowance for doubtful accounts -- 100,000 -- -- 100,000 2000: Allowance for doubtful accounts -- -- -- -- --