- Expression of cyclooxygenase-2 (COX-2) in human invasive transitional cell carcinoma (TCC) of the urinary bladder. Mohammed, S.I., Knapp, D.W., Bostwick, D.G., Foster, R.S., Khan, K.N., Masferrer, J.L., Woerner, B.M., Snyder, P.W., Koki, A.T. Cancer Res. (1999)