Littlejohn, A.; Button, C.; Bowles, Felicity; Bigalke, R.D.
(Published by The Government Printer, Pretoria, 1983)
Mean modal vectors of P₁, P₂ and QRS were determined in the 3 planes of a semi-orthogonal EKG lead system in 17 horses and ponies with chronic obstructive pulmonary disease (COPD) and in 17 clinically normal horses and ...