@Article{info:doi/10.2196/26218, author="Crutzen, Rik", title="And Justice for All? There Is More to the Interoperability of Contact Tracing Apps Than Legal Barriers. Comment on ``COVID-19 Contact Tracing Apps: A Technologic Tower of Babel and the Gap for International Pandemic Control''", journal="JMIR Mhealth Uhealth", year="2021", month="May", day="26", volume="9", number="5", pages="e26218", keywords="COVID-19; contact tracing; data protection; privacy; interoperability; global health; public health", issn="2291-5222", doi="10.2196/26218", url="https://mhealth.jmir.org/2021/5/e26218", url="https://doi.org/10.2196/26218", url="http://www.ncbi.nlm.nih.gov/pubmed/33848974" }