Looks like this is the paper referred to - published yesterday: "Man against machine: diagnostic performance of a deep learning convolutional neural network for dermoscopic melanoma recognition in comparison to 58 dermatologists", by H.A. Haenssle et al. Annals of Oncology. doi:10.1093/annonc/mdy166
https://doi.org/10.1093/annonc/mdy166