Epidemiological study of sleep habits among four-and-a-half-year-old children in Japan
| Autor: | Ikeda, Maki, Kaneita, Yoshitaka, Kondo, Shuji, Itani, Osamu, Ohida, Takashi |
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| Zdroj: | In Sleep Medicine August 2012 13(7):787-794 |
| Databáze: | ScienceDirect |
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Full Text from ScienceDirect