Correction: Layer-by-Layer Proteomic Analysis of Mytilus galloprovincialis Shell

• Peng Gao, 
• Zhi Liao, 
• Xin-xing Wang, 
• Lin-fei Bao, 
• Mei-hua Fan, 
• Xiao-min Li, 
• Chang-wen Wu, 
• Shu-wei Xia