Dear Friends, One of our P.G. Student needs following article for her research purpose. If any one of you have access to the article kindly arrange to send. Title: Epidemiological principles in studying periodontal diseasesAuthors: JAMES D. BECK and HARALD LÖE Journal: Periodontology 2000 Volume 2, Issue 1, June 1993, Pages: 34–45, Article first published online : 23 FEB 2007, DOI: 10.1111/j.1600-0757.1993.tb00218.x With Regards, Mrs. Shashikala K Librarian, A.B. Shetty Memorial Institute of Dental Sciences, Constituent College of Nitte University, Deralakatte, Mangalore - 575018. Ph: 0824-2204572, 2204963 (ext.-234) Res: 0824-2202133 Mob: +919448869047. -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean.