after reviewing the various methods employed in an exploration of the functions of the eustachian tube , and in particular the drainage function , the writers explain the method in detail ( indicator , detection system , examination procedure , normal scintigraphic aspects ) while stressing the control factors ( onset of passage , speed and intensity of passage , length of time for the appearance of a trace on the pharynx , eventual aspects of blocking ) and giving the basic characteristics ;
C1444754
length
C1521970
characteristics