@article{doi:10.1001/jama.2010.931,
author = {Goodman S and Berry D and Wittes J},
title = {BIas and trials stopped early for benefit},
journal = {JAMA},
volume = {304},
number = {2},
pages = {156-159},
year = {2010},
doi = {10.1001/jama.2010.931},
URL = { + http://dx.doi.org/10.1001/jama.2010.931},
eprint = {/data/Journals/JAMA/4520/jlt0714_157_157.pdf}
}