Strengths and limitations of non-disclosive data analysis: a comparison of breast cancer survival classifiers using VisualSHIELD.

"Conflict of interest The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. The author(s) declared that they were an editorial board member of Frontiers, at the time of submission. This had no impact on the peer review process and the final decision."

"The author(s) declare financial support was received for the research, authorship, and/or publication of this article. This work was supported by the European Nutritional Phenotype Assessment and Data Sharing Initiative (ENPADASI) and its infrastructure as part of the Joint Programming Initiative “A Healthy Diet for a Healthy Life” (JPI-HDHL), which is funded by national funding agencies in nine European countries. In Italy, funding was provided by the Ministry of Education, University and Research (MIUR), the Ministry of Agricultural, Food and Forestry policies (MiPAAF), and the National Institute of Health (ISS) on behalf of the Ministry of Health. This work was also partially funded by COSBI."