男表:( 如要放大字体,可以按右侧上方的加号)
https://www.ncbi.nlm.nih.gov/core/lw/2.0/html/tileshop_pmc/tileshop_pmc_inline.html?title=Click%20on%20image%20to%20zoom&p=PMC3&id=4553889_EXCLI-14-465-t-003.jpg
女表:
https://www.ncbi.nlm.nih.gov/core/lw/2.0/html/tileshop_pmc/tileshop_pmc_inline.html?title=Click%20on%20image%20to%20zoom&p=PMC3&id=4553889_EXCLI-14-465-t-004.jpg
全文
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4553889/