There is an access code on the inside cover, but I have no idea if it is valid. Minor highlighting mostly in the first part of the book. The AAOS Emergency Care and Transportation Twelfth Edition Hardcover Textbook is a comprehensive resource focused on emergency medicine, public health, and transportation. Published by Jones & Bartlett Learning, this textbook is part of the AAOS series and authored by Andrew N. Pollak, MD, FAAOS. With a publication year of 2021 and a special 50th Anniversary edition, this textbook is designed for adult and further education levels, making it an essential tool for those studying and working in the field of emergency care and transportation for the sick and injured.