English: Source: Shuhei Nomura, Masaharu Tsubokura, Akihiko Ozaki, Michio Murakami, Susan Hodgson, Marta Blangiardo, Yoshitaka Nishikawa, Tomohiro Morita, Tomoyoshi Oikawa: "Towards a Long-Term Strategy for Voluntary-Based Internal Radiation Contamination Monitoring: A Population-Level Analysis of Monitoring Prevalence and Factors Associated with Monitoring Participation Behavior in Fukushima, Japan". In: International Journal of Environmental Research and Public Health, 14, (4), 2017, pii: E397 (18 pp.), DOI: 10.3390/ijerph14040397. Here: p. 4/18, Fig 1 ("Locations of Minamisoma City and two whole body counter-installed hospitals"). Published on 9 April 2017. License: Attribution 4.0 International (CC BY 4.0).

Original caption given in the above cited source: "Figure 1. Locations of Minamisoma City and two whole body counter-installed hospitals. The base map shows the air dose rate [μSv/h] as of 22 April 2011 at a height of 1 m above the ground measured in terms of the ambient dose equivalent (H*10) [25], which includes the natural radiation background from the earth’s crust. Data source details are explained in the methods section of this paper. The blue circles show the geographical distribution of the study population, where the circles are proportional to the number of subjects living in each Oaza. MMGH indicates Minamisoma Municipal General Hospital. "

Context given in the above mentioned source: "On 22 April 2011, the compulsory evacuation zone was expanded slightly to the northwest based on the measured dispersion of highly radioactive fallout (Figure 1), and the evacuation/indoor-sheltering zones were reclassified into three zones in line with air dose rates: (a) Evacuation Order Zone; (b) Planned Evacuation Zone; and (c) Emergency Evacuation-Ready Zone. On 12 July 2016, the central government lifted the evacuation order for all but a tiny slice of the city. The geographical scope of these zones and the locations of Minamisoma City and the two WBC installed hospitals (see below section), relative to the nuclear power plant, are shown in Figure 1."