JAMA (2015) - Comment
pubmed: 26647259  doi: 10.1001/jama.2015.15845  issn: 0098-7484  issn: 1538-3598 

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Douglas A. Mata, Marco A. Ramos, Narinder Bansal, Rida Khan, Constance Guille, Emanuele Di Angelantonio, Srijan Sen