This article, which appeared in Volume 11, Number 6 (November/December 2006), was originally published online on 10 November 2006 with several errors. The online PDF and HTML versions were corrected on 14 November 2006 and the article appears correctly in print.
The following changes were made to the article:
The word “model” was deleted from the third line of the Abstract;
The word “of” was deleted from the second line of paragraph 6 on page 064002–7;
The phrase “early late inflammatory/granulation tissue/late inflammatory” was changed to “late inflammatory/early granulation tissue” on lines 10–11 of paragraph 5 on page 064002–8;
The phrase “Tsukuba Science City, Japan” was deleted from line 3 of reference 46 on page 064002–10;
The use of prime symbols was corrected throughout the paper for consistency.