@article{doi:10.1302/0301-620X.73B5.1894659,
author = {Lettin, AW and Ware, HS and Morris, RW},
title = {Survivorship analysis and confidence intervals. An assessment with reference to the Stanmore total knee replacement},
journal = {The Journal of Bone & Joint Surgery British Volume},
volume = {73-B},
number = {5},
pages = {729-731},
year = {1991},
doi = {10.1302/0301-620X.73B5.1894659},
url = {https://doi.org/10.1302/0301-620X.73B5.1894659}
}