A specific quotation regarding entrance or exit, I feel, is a partial quotation or incompletely quoted from me. The part pertaining to the bullet entering the President's chest rests on the reasons for the placing of the chest tubes which were being inserted when I arrived. It was the assumption, based on the previously described deviation of the trachea and the presence of blood in the strap muscles of the neck that a wound or missile wound might have entered the President's chest.

Mr. Specter. Well, what was there, Dr. Clark, in the deviation of the trachea and the presence of blood in the strap muscles of the neck which so indicated?

Dr. Clark. Assuming that a missile had entered the pleural space, if there had been bleeding into the pleural space, the trachea would have been deviated or had there been leakage of air into the pleural space, the trachea would have been deviated, as it is the main conduit of air to the two lungs. Collapse of a lung would have produced, or will produce deviation of the trachea. There being a wound in the throat, there being blood in the strap muscles and there being deviation of the trachea in the presence of a grievously wounded patient without opportunity for X-ray or other diagnostic measures, Dr. Perry assumed that the findings in the neck were due to penetration of the missile into the chest. For this reason, he requested chest tubes to be placed.

Mr. Specter. Well, is the deviation of the trachea and the presence of bleeding on the strap muscles of the neck and the other factors which you have recited equally consistent with a wound of exit on the neck?

Dr. Clark. Yes, sir. Furthermore, let me say that the presence of the deviation of the trachea, with blood in the strap muscles, are by no means diagnostic of penetration of the chest, and the placing of the chest tubes was prophylactic had such an eventuality occurred.

Mr. Specter. Was there any external indication that there was a missile in the chest?

Dr. Clark. No, sir.

Mr. Specter. Was it the preliminary thought that the missile might have been in the chest by virtue of the fact that this wound was noted on the neck?

Dr. Clark. Yes; with the other factors I have enumerated.

Mr. Specter. And at that time, not knowing what the angle might have been or any of the surrounding circumstances, then you proceeded to take precautionary measures as if there might have been a missile in the chest at some point?