Cattell, W. R., McSherry, M. A., Northeast, A., Powell, E., Brooks, H. J. L., & O'Grady, F. (1974). Periurethral Enterobacterial Carriage in Pathogenesis of Recurrent Urinary Infection.

Cattell, W. R., M. A. McSherry, A. Northeast, E. Powell, H. J. L. Brooks, και F. O'Grady. Periurethral Enterobacterial Carriage in Pathogenesis of Recurrent Urinary Infection. 1974.

Cattell, W. R., et al. Periurethral Enterobacterial Carriage in Pathogenesis of Recurrent Urinary Infection. 1974.