@article{Wong_Singer_Watson_2001, title={A relentless peripheral corneal ulcer}, volume={5}, url={https://hkjo.hk/index.php/hkjo/article/view/127}, number={1}, journal={Hong Kong Journal of Ophthalmology}, author={Wong, Chi-cheong and Singer, Jack A and Watson, Peter G}, year={2001}, month={Dec.}, pages={41–43} }