This lot includes six study guides titled "Manual CTO" written by Viviana Pacucci. The guides cover various subjects in medicine and surgery, including endocrinology, general medicine, pneumology and thoracic surgery, infectious diseases, basic sciences, and rheumatology. The guides are published by CTO Grupo and are part of the 5th edition series.

The manuals are in Spanish and are suitable for high school, adult and vocational school students. They are illustrated and contain advanced, beginner, intermediate, and technical levels. The publication year is 2020, and the country/region of manufacture is unknown. This lot is perfect for anyone looking to expand their knowledge in the field of medicine and surgery.