. 2015 Feb 9;4(1):e22. doi: 10.2196/resprot.3795
©Åsa Revenäs, Christina H Opava, Cathrin Martin, Ingrid Demmelmaier, Christina Keller, Pernilla Åsenlöf. Originally published in JMIR Research Protocols (http://www.researchprotocols.org), 09.02.2015.
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