Bidirectional longitudinal associations between estimated muscle mass and self-reported chronic lung disease in middle-aged and older adults: findings from the China health and retirement longitudinal study

• Jing YangHainan Medical University
• Weixia LiHainan Medical University
• Ruixuan ZhaoHainan Medical University
• Jingjing LuHainan Medical University
• Xinlu CuiHainan Medical University
• Jianlin LinMacao Polytechnic University
• Li CaoHainan Medical University