Today we pay tribute to Doctors John C. Grammer and Michael M. Dehn of Dallas, Texas, star and director (respectively) of a sparsely superb medical education film, made in 1980, about arrythmias of the heart:
Today we pay tribute to Doctors John C. Grammer and Michael M. Dehn of Dallas, Texas, star and director (respectively) of a sparsely superb medical education film, made in 1980, about arrythmias of the heart: