@article {grgu2006aje, title = {Accounting for independent nondifferential misclassification does not increase certainty than an observed association is in the correct direction}, journal = {American Journal of Epidemiology}, volume = {164}, year = {2006}, pages = {63-68}, doi = {10.1093/aje/kwj155}, author = {Greenland, S. and Gustafson, P.} }