Is the network of heterosexual contact in Japan scale free?

• Hiromu Ito,

  Roles Conceptualization, Funding acquisition, Investigation, Writing – original draft

  Affiliations Department of International Health, Institute of Tropical Medicine, Nagasaki University, Nagasaki, Japan, Department of Environmental Sciences, Zoology, University of Basel, Basel, Switzerland

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• Kazuhiro Tamura,

  Roles Software, Visualization

  Affiliation Department of Environment and Energy Systems, Graduate School of Science and Technology, Shizuoka University, Hamamatsu, Shizuoka, Japan

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• Takayuki Wada,

  Roles Data curation, Methodology

  Affiliations Department of International Health, Institute of Tropical Medicine, Nagasaki University, Nagasaki, Japan, School of Tropical Medicine and Global Health, Nagasaki University, Nagasaki, Japan

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• Taro Yamamoto,

  Roles Supervision, Writing – review & editing

  Affiliation Department of International Health, Institute of Tropical Medicine, Nagasaki University, Nagasaki, Japan

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• Satoru Morita

  Roles Conceptualization, Investigation, Methodology, Supervision, Visualization, Writing – original draft

  * E-mail: morita.satoru@shizuoka.ac.jp

  Affiliations Department of Environment and Energy Systems, Graduate School of Science and Technology, Shizuoka University, Hamamatsu, Shizuoka, Japan, Department of Mathematical and Systems Engineering, Graduate School of Integrated Sciences and Technology, Shizuoka University, Hamamatsu, Shizuoka, Japan

  http://orcid.org/0000-0001-5219-6218

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