6) The patient has a history of significant bleeding disorders. 7) The patient has scleroderma or fibrotic tissue disease. 8) The patient is female and of child bearing potential and/or is pregnant or lactating or is not using medically effective birth control, such as hormonal methods in use at least 30 days prior to implantation, or barrier methods such as a condom and spermicide in use at least 14 days prior to implantation.