Editorial Médica Panamericana provides an e-book version that often includes interactive self-assessment tools.
I’m not sure which of these you mean—I'll choose the most useful interpretation and build it: a feature specification for a search-and-study tool that helps users find high-quality, legal PDF resources and practice questions for "Semiología Médica" (Argente, 3rd ed.), prioritizing copyright-respecting access, extra-quality practice questions, and study workflows.
Detailed semiotechniques (the "how-to" of examination).
Let’s be realistic: not everyone can afford a new textbook. Here are legal alternatives to “pdf gratis”: