TASK DEFINITION: In this task, you are given a sentence in the English language. Your job is to translate the English sentence into the Spanish language.
PROBLEM: Antitumor immunotherapy by means of LAK lymphocytes (lymphokine-activated cytolytic lymphocytes) is based on the action of

SOLUTION: La inmunoterapia antitumoral mediante linfocitos LAK (linfocitos citolíticos activados por linfocinas) se basa en la acción de

PROBLEM: The portal triads of the liver lobules are formed by

SOLUTION: Las triadas portales de los lobulillos hepáticos están formadas por

PROBLEM: When facing a victim of a fire, what is the first step to be taken ?

SOLUTION:
Ante una víctima de un incendio, ¿cuál es la primera medida que debe adoptarse?