Very good condition book. The book is complete, unmarked, and undamaged, but may show some limited signs of wear. Please see pictures for more details. ?Respiratory Care Calculations" by David W. Chang is a textbook published in 1994 focusing on medical calculations in the field of respiratory care. A comprehensive, concise workbook and reference tool of 73 respiratory care calculations with practice exercises to reinforce learning and retention. Complies all key R.espiratory Care Calculations into one book. Thanks for considering this book ??