主题：【已应助】求助英文文献4篇，请帮帮忙，谢谢啦！

【篇  号】：1
【题  名】：Quantitative analysis of flavonols, flavones, and flavanones in fruits, vegetables and beverages by high-performance liquid chromatography with photo-diode array and mass spectrometric detection
【作  者】：Ulla Justesen*, Pia Knuthsen and Torben Leth.
【期刊名全称】：Journal of Chromatography A
【文献页码】：Volume 799, Issues 1-2, 13 March 1998, Pages 101-110 .,   .
【全文链接】: http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TG8-3SBN0J9-B&_user=10&_coverDate=03%2F13%2F1998&_rdoc=1&_fmt=high&_orig=search&_origin=search&_sort=d&_docanchor=&view=c&_searchStrId=1637863092&_rerunOrigin=scholar.google&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=a79046af41f243aa7bf61e8a54cd00b7&searchtype=a

【篇  号】：3
【题  名】：LC-DAD-ESI/MSn Determination of Direct Condensation Flavanol−Anthocyanin Adducts in Pressure Extracted Pomegranate (Punica granatum L.) Juice
【作  者】：Enrique Sentandreu, Jose L. Navarro, and Jose M. Sendra*
【期刊名全称】：J. Agric. Food Chem.,
【文献页码】：2010, 58 (19), pp 10560–10567.
【全文链接】: http://pubs.acs.org/doi/abs/10.1021/jf101978z

【篇  号】：4
【题  名】：The cosmetic treatment of wrinkles
【作  者】：C Rona1, F Vailati1, E Berardesca2,*
【期刊名全称】： Journal of Cosmetic Dermatology.,   
【文献页码】： Volume 3, Issue 1, pages 26–34, January 2004..
【全文链接】: http://onlinelibrary.wiley.com/doi/10.1111/j.1473-2130.2004.00054.x/full

【篇  号】：5
【题  名】：The melanogenesis and mechanisms of skin-lightening agents – existing and new approaches
【作  者】：J. M. Gillbro, M. J. Olsson.
【期刊名全称】：International Journal of Cosmetic Science
【文献页码】： Early View (Articles online in advance of print).
【全文链接】: http://onlinelibrary.wiley.com/doi/10.1111/j.1468-2494.2010.00616.x/full