Correction: Combining MAD and CPAP as an effective strategy for treating patients with severe sleep apnea intolerant to high-pressure PAP and unresponsive to MAD

• Hsiang-Wen Liu, 
• Yunn-Jy Chen, 
• Yi-Chun Lai, 
• Ching-Yi Huang, 
• Ya-Ling Huang, 
• Ming-Tzer Lin, 
• Sung-Ying Han, 
• Chi-Ling Chen, 
• Chong-Jen Yu, 
• Pei-Lin Lee