In this task, you are given a multiple-choice question about healthcare. Answer the question based on your information and classify your answers into '1', '2', '3', and '4'.

Question: It allows to compare proportions of two independent samples the statistical test:
Options: <1> From McNemar. <2> Of Snedecor. <3> Of the median. <4> Exact Fisher. <5> U of Mann-Whitney.
4

Question: Naloxone is used in the treatment of poisoning with:
Options: <1> Opiates <2> Benzodiazepines. <3> Barbiturates <4> Tricyclic antidepressants. <5> Digitalicos.
1

Question: Of the following surface markers, one of them is expressed only in the virgin T lymphocytes, while the rest are also found in the population of activated T lymphocytes. Which?
Options: <1> The adhesion molecule L-selectin. <2> The T lymphocyte receptor (TCR). <3> The integrin LFA-1. <4> The CD4 co-receptor molecule. <5> The integrin VLA-4.
1