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Efficacy, safety, and economic evaluation of Ojeok-san plus Saengmaek-san for gastroesophageal reflux-induced chronic cough: Protocol for a randomized, double-blind, placebo-controlled, parallel, multicenter, investigator-initiated clinical trial
- Yee Ran Lyu,
- O-Jin Kwon,
- Ae-Ran Kim,
- Min Ji Kim,
- Yoon Jae Lee,
- Kwan-Il Kim,
- Jae-Woo Park,
- Seok-Jae Ko,
- Yang-Chun Park,
- Jun-Yong Choi
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- Published: June 25, 2025
- https://doi.org/10.1371/journal.pone.0325786