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The delta/alpha ratio in sleep EEG increases with the severity of depression in patients over 50 years old.

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Title: The delta/alpha ratio in sleep EEG increases with the severity of depression in patients over 50 years old.
Authors: Yang, Letian1,2,3,4,5 (AUTHOR), Kong, Xiaoming1,2,3,4,5,6 (AUTHOR) kxm186@126.com, Geng, Hao1,2,3,4,5 (AUTHOR), Xie, Pengyu1,2,3,4,5 (AUTHOR), Sun, Yan7 (AUTHOR), Lv, Siwen1,2,3,4,5 (AUTHOR), Guo, Yu1,2,3,4,5 (AUTHOR), Gao, Xinyu1,2,3,4,5 (AUTHOR), Zhu, Nannan1,2,3,4,5 (AUTHOR), Li, Jiaojiao7 (AUTHOR), Pei, Yangliu1,2,3,4,5 (AUTHOR)
Source: BMC Psychiatry. 10/27/2025, Vol. 25 Issue 1, p1-14. 14p.
Database: Academic Search Ultimate
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  Data: The delta/alpha ratio in sleep EEG increases with the severity of depression in patients over 50 years old.
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  Data: <searchLink fieldCode="JN" term="%22BMC+Psychiatry%22">BMC Psychiatry</searchLink>. 10/27/2025, Vol. 25 Issue 1, p1-14. 14p.
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        Value: 10.1186/s12888-025-07367-1
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              Text: 10/27/2025
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              Y: 2025
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