http://www.nature.com/articles/srep43515.pdf
Nature
全网免费
//xueshu.baidu.com/s?wd=paperuri%3A%2841e3bf21808df7829c509d80a03511a1%29&filter=sc_long_sign&tn=SE_xueshusource_2kduw22v&sc_vurl=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fpmc%2Farticles%2FPMC5327486%2Fpdf%2Fsrep43515.pdf&ie=utf-8&sc_us=9513400741428387036
NCBI
全网免费
http://www.socolar.com/Article/Index?aid=200252085142&jid=200000073720
socolar.com
全网免费
http://www.onacademic.com/detail/journal_1000039834663710_eb9a.html
onacademic.com
全网免费
http://www.xueshufan.com/publication/2594551973
xueshufan.com
全网免费
2.6M
http://dash.harvard.edu/bitstream/1/32072064/1/5327486.pdf
dash.harvard.edu
全网免费