. 2019 Mar 14;8(3):e12037. doi: 10.2196/12037
©Tesleem K Babalola, Indres Moodley. Originally published in JMIR Research Protocols (http://www.researchprotocols.org), 14.03.2019.
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Figure 2.
Data envelopment analysis model proposed by Charness et al.