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Q 2713134040.     (i) What is the given graphic recording called?
(ii) Name the instrument used for such recording.
(iii) What do, 'P' wave, QRS wave and 'T' wave represent?
(iv) What do alterations in 'P' wave and 'QR' wave indicate?
BCECE 2008 Mains
(Provided By a Student and Checked/Corrected by EXXAMM.com Team)