Related by context. Frequent words. (Click for all words.) 46 Japan 43 Hiroshi 43 Kanazawa 40 Hirano 40 childless couples 39 Crown Prince Naruhito 39 birthrate 39 Population 38 Yamaguchi 38 Infertility 38 Mainichi Shimbun 37 Prime Minister Shinzo Abe 37 Fertility 37 gender imbalance 37 child rearing 36 Ishihara 36 Hashimoto 36 Tohoku 36 Japanese 36 prefectural 36 Fukui 36 Tamura 36 pregnancies 36 yen 35 infertility 35 childbearing 35 Kyodo 35 Mainichi 35 Fukuda 35 fertility 34 Shinzo Abe 34 Prime Minister Taro Aso 34 IVF 34 unplanned pregnancies 34 public broadcaster NHK 34 contraceptive 34 Demographic 34 Yomiuri Shimbun 33 Sakurai 33 Yosano 33 Hirai 33 childless 33 female fetuses 33 Hatoyama 33 Asahi Shimbun 33 births 32 Prime Minister Junichiro Koizumi 32 Fujii 32 Welfare 32 contraception 32 unwanted pregnancies 32 centenarians 32 Yomiuri 32 Jiji Press 32 Koizumi 32 fertility treatments 32 Emperor Akihito 32 DPJ 32 Yomiuri newspaper 31 Secretary Shinzo Abe 31 unwed 31 Kitazawa 31 Ageing 31 assisted reproductive 31 Prime Minister Yukio Hatoyama 31 Iwata 31 couples 31 Obesity 31 childbirth 31 arranged marriages 31 teenage pregnancies 31 Prime Minister Naoto Kan 31 Shirakawa 31 Yamasaki 31 Kaoru Yosano 31 Aso 30 vasectomies 30 Maternal 30 Prime Minister Yasuo Fukuda 30 Noda 30 trillion yen 30 infertile 30 assisted reproduction 30 Mainichi newspaper 30 Naoto Kan 30 teenage pregnancy 30 Population Fund 30 mothers 30 Aiko 29 unmarried 29 Kanagawa 29 obstetricians 29 unsafe abortions 29 Planning 29 Epidemiology 29 Fukushima 29 Nihon Keizai Shimbun 28 vitro fertilization IVF 28 unhealthy lifestyles 28 childbearing age 28 menopause