Librería Samer Atenea
Kálamo Books
Librería Perelló (Valencia)
Librería Elías (Asturias)
Donde los libros
Librería Kolima (Madrid)
Librería Proteo (Málaga)
Virtually everyone has taken antibiotics. They can be lifesavers -- or they can be useless. But what are they? How are they used? And what happens as the effectiveness of antibiotics begins to decline?