Answer:
There is not such a thing as a QRS wave and it is just another name for QRS complex which I'm sure you know represents ventricular polarization
Explanation:
Well the correct answer is air pollution ur welcome
Answer:
Mantoux skin test required annually
I believe all of the above is correct.
<span>Nearsightedness is corrected with lenses.
True, but also glasses and myopia is important if an operation <span>can take place.</span></span>
