@article {Chen455, author = {Xin Chen and Hai-tao Yang and Jessie Norris and Zhi-hang Peng and Ning Wang and Rong-Bin Yu}, title = {Retention challenge in an MSM cohort in Suzhou, China}, volume = {88}, number = {6}, pages = {455--455}, year = {2012}, doi = {10.1136/sextrans-2011-050358}, publisher = {The Medical Society for the Study of Venereal Disease}, issn = {1368-4973}, URL = {https://sti.bmj.com/content/88/6/455}, eprint = {https://sti.bmj.com/content/88/6/455.full.pdf}, journal = {Sexually Transmitted Infections} }