@misc{indiciae33a6362d3291, title = {Sample size determinations using logistic regression with pilot data.}, author = {V F Flack and T L Eudey}, year = {1993}, doi = {10.1002/sim.4780121107}, url = {https://pubmed.ncbi.nlm.nih.gov/8341867/}, note = {Source identifier: 8341867} }