. 2019 Apr 30;2(1):e12192. doi: 10.2196/12192
©Estefanía Guisado-Fernández, Guido Giunti, Laura M Mackey, Catherine Blake, Brian Michael Caulfield. Originally published in JMIR Aging (http://aging.jmir.org), 30.04.2019.
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Figure 2.
Numbers of papers identified per year.