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Junko Shimizu
Laboratory of Evaluation of Natural Environment, Institute of Natural Environmental Studies, Graduate School of Frontier Sciences, the University of Tokyo
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Saburo Ikemoto
Specified nonprofit corporation, The Servants of Nature, Yokohama Tree Doctors Association
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Yoshio Yamaoka
Faculty of Agriculture, Tamagawa University
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Kenji Fukuda
Laboratory of Evaluation of Natural Environment, Institute of Natural Environmental Studies, Graduate School of Frontier Sciences, the University of Tokyo