Chika Horikawa, Nobuko Murayama, Hiromi Ishida, Taeko Yamamoto, Sayaka Hazano, Akemi Nakanishi, Yumi Arai, Miho Nozue, Yukiko Yoshioka, Saori Saito, et al. Nutrient adequacy of Japanese schoolchildren on days with and without a school lunch by household income. FOOD & NUTRITION RESEARCH. 2020. 64