Russian scientist, Professor Petrovsky explains operation of diaphragm.
Moscow, Russia, Soviet Union (USSR, Russian Federation).
GV. Entrance of Moscow Medical Institute. LS. Doctors walking down corridor. LS. Professor Petrovsky, Rector of the Moscow State University, talking. CU. X-ray plates showing chest and ribs. LS. Doctors listening. LS. Professor Petrovsky holding up sponge. Various shots of Professor Petrovsky holding and twisting the sponge and handing it to doctor. Jar with water and sponge becomes saturated - it is elastic, but it remains durable. Doctors listening. Various shots of Professor Petrovsky operating on a patient, several doctors wearing masks looking on. BV. Professor entering ward, examining one of the patients and talking to patients.
Date found in the old record - 24/03/1958.