mate i can give only respect to your country only because Mckenzie and Mulligan are from there!!! Both of them are genious in what they gave to our profession,especially the first....As far as concernerd the literature on chronic pain states, have u any other book recommendations on that field?? i mean,i also ve heard that the book "EXPLAIN PAIN" by Butler and Moseley is an excellent reference, but also that it is not so descriptive...For example the classic book "TEXTBOOK OF PAIN" by Wall and Melzack,u think is a good reference especially about chronic pain???