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. 2019 Jul 24;9:63. doi: 10.1186/s13550-019-0537-2

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© The Author(s). 2019

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

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Fig. 2 — Results of the “Request of DAT SPECT imaging” survey. (1) In which case do you request DAT SPECT imaging? (left panel). (2) How often do you request DAT SPECT imaging? (right panel). DAT, dopamine transporter; SPECT, single-photon emission computed tomography; PD, Parkinson’s disease; N, number of respondents