Additional file 4 of The scope and extent of literature that maps threats to species: a systematic map protocol

Additional file 4. Data Coding Tool: The spreadsheet used for coding of meta-data, including descriptions of the topography and definitions to be used by reviewers.

附加文件4：数据编码工具（Data Coding Tool）：用于元数据编码的电子表格，涵盖供审稿人员使用的元数据结构描述与定义细则。