Unfortunately, I couldn't find a direct link to a free PDF version of the book. However, I can suggest some possible sources where you might be able to access it:
Ejemplo concreto (edición común):
Covers 19th-century Mexican medicine, the neuropsychiatry revolution, and the advent of chemotherapy and antibiotics.
¡Claro! A continuación, te presento un borrador de blog post sobre la historia gráfica de la medicina de Manuel Barquín Calderón en formato PDF: