@article{Roads_etal_2018,
    title={The easy-to-hard training advantage with real-world medical images},
    author={Brett D. Roads and Buyun Xu and June K. Robinson and James W. Tanaka},
    journal={Cognitive Research: Principles and Implications},
    year={2018},
    volume={3},
    number={38},
    doi={10.1186/s41235-018-0131-6}
}