Tésis presentada al protomedicato de Guatemala para la licenciatura en medicina y cirujia / por Exequiel Valenzuela.
License information
You can use this work for any purpose without restriction under copyright law. Read more about this licence.
Credit
Tésis presentada al protomedicato de Guatemala para la licenciatura en medicina y cirujia / por Exequiel Valenzuela. Credit: This material has been provided by the National Library of Medicine (U.S.), through the Medical Heritage Library. The original may be consulted at the National Library of Medicine (U.S.). Public Domain Mark