Although I saw no injury to the lung or to the pleural space, the presence of this free blood and air in this area could be indicative of a wound of the right hemithorax, and I asked that someone put a right chest tube in for seal drainage. At the time I did not know who did this, but I have been informed that Dr. Baxter and Dr. Paul Peters inserted the chest tube and connected it to underwater drainage. Blood transfusions and fluid transfusions were being given at this time, and through the previous venesections that had been done by Dr. Jones and Dr. Carrico. Also, the President had received 300 mg. of Solucortef in order to support his adrenal glands, since it was common medical knowledge that he suffered from adrenal insufficiency. Of course, oxygen and pressure breathing were being effected under the guidance of Dr. Jenkins and Dr. Giesecke, who were handling the anesthesia machine at the head of the table. Dr. Bashour and Dr. Seldin, in addition to Dr. Clark, had arrived and also assisted in monitoring cardiac actions, as indicated by the oscilloscope and the cardiotachioscope. Mr. SPECTER. Have you now described all of the operative procedures performed on the President? Dr. PERRY. Yes, all that I am familiar with. Mr. SPECTER. Are there any doctors who participated other than those whom you have already identified in the course of your description? Dr. PERRY. Yes, sir; immediately on arriving there, and as I say, Dr. Jones and I, and I saw Dr. Carrico, and I have the impression there was another physician there, but I don't know who it was. I asked that an emergency call be placed for Dr. Kemp Clark, chief of neurosurgery, for Dr. Robert McClelland, and Dr. Charles Baxter, assistant professors of surgery. They responded immediately. I don't know how long it took them to get there, but they were probably there within the next few minutes. My first recollection of Dr. McClelland and Dr. Baxter being there was when I was doing the tracheotomy, they suddenly were there assisting me. I don't know when they came in the room, nor do I know when Dr. Clark or the other gentlemen arrived, and there must have been 10 or 12 doctors all told by then. Mr. SPECTER. Are there any others whom you could identify? Dr. PERRY. Dr. Peters--I previously mentioned, Dr. Paul Peters, assistant professor of urology, Dr. Fouad Bashour, associate professor of medicine, and chief of cardiology, and Dr. Don Seldin, chief of medicine. I mentioned Dr. M. T. Jenkins, chief of anesthesia, and Dr. Giesecke, his assistant professor of anesthesiology--that's the only people that I saw directly. Mr. SPECTER. Could the first doctor whom you saw have been Dr. Don Curtis? Dr. PERRY. That's entirely possible--I don't recall. Mr. SPECTER. Was Dr. Dulany there?