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The biologic phenotype underlying chronic periodontitis, including the biofilm and the host response, tend to vary among individuals despite a similar clinical diagnostic category (Offenbacher et al. 2007). Consequently, disease screening should ideally be based on clinical determinations and the biologic phenotype (Page and Kornman 1997). Other associated factors include environmental exposures, as well as differences in genetic and possibly epigenetic composition (Page and Kornman 1997). | Clive Oxenden Christina Latham-Koenig with Tracy Byrne study Link New ENGLISH FILE Intermediate Workbook www.oup.com elt englishfile intermediate OXFORD Clive Oxenden Christina Latham-Koenig with Tracy Byrne New ENGLISH FILE Intermediate Workbook Paul Seligson and Clive Oxenden are the original co-authors of English File 1 pub. 1996 and English File 2 pub. 1997 . OXFORD UNIVERSITY PRESS Contents Food fuel or pleasure If YOU really want to win cheat We are family o Introductions Practical English 4 7 10 13 Slow down you move too fast Practical English 44 47 50 S3 Ka-ching Changing your life Race to the sun In the office Practical English 14 17 20 23 Love in the supermarket See the film.get on a plane I need a hero Breaking news Practical English 54 57 60 63 Modern manners Judging by appearances Practical English 24 27 30 33 Can we make our own luck Murder mysteries Switch it off Everything in the open Practical English 64 67 70 73 Back to school aged 35 In an ideal world. Still friends A visit from a pop star Practical English 34 37 40 43 Listening .
