@misc{indiciae65053adc6d11, title = {A perfect correlate does not a surrogate make.}, author = {Stuart G Baker and Barnett S Kramer}, year = {2003}, doi = {10.1186/1471-2288-3-16}, url = {https://pubmed.ncbi.nlm.nih.gov/12962545/}, note = {Source identifier: 12962545} }