@article{cheng_ng_chan_cheung_chan_wong_2004,  title={Interobserver variation of prostatic volume estimation with digital rectal examination by urological staffs with different experiences},  volume={30},  ISSN={1677-5538},  url={https://doi.org/10.1590/S1677-55382004000600003},  DOI={10.1590/S1677-55382004000600003},  number={6},  journal={International braz j urol},  publisher={Sociedade Brasileira de Urologia},  author={Cheng, Wai C. and Ng, Fai C. and Chan, Kwok C. and Cheung, Yuen H. and Chan, Wai L. and Wong, Sang W.},  year={2004},  month={Nov},  pages={466–471} }