6] Some other exemplary cases of self-experimentation in the 20th century include Werner Forssmann
who, in 1930, practised cardiac catheterisation on himself and won a Nobel Prize in Physiology or Medicine in 1956 for his work;  and JBS Haldane who subjected himself to various gases in decompression chamber experiments in an attempt to find out how best to protect sailors in submarines.
Chaussy C, Schmiedt E, Jocham D, Brendel W, Forssmann
B, Walther V.
Nobel Prize winning investigators such as Andre Cournand (5) and Werner Forssmann
(6) developed cardiac catheterisation and used transducers to accurately measure pressures throughout the circulatory system.
10) Werner Forssmann
(1904-1979), the Dusseldorf professor of surgery and Nobel Prize winner, also stated his ethical objections in public.
, Mason Sones, and Andreas Gruentzig, like medical revolutionaries before them, were men of daring tactics and outsized personalities whose brilliant forays into the medically unknown provide absorbing reading in David Monagan's new book, Journey into the Heart: A Tale of Pioneering Doctors and Their Race to Transform Cardiovascular Medicine.
Krause A, Neitz S, Magert HJ, Schulz A, Forssmann
WG, SchulzKnappe P, et al.
The peptide was first isolated by scientists affiliated with the group of Wolf-Georg Forssmann
at Heidelberg University, and has been developed by a German company, CardioPep Pharma GmbH.
Inspired by the knowledge that catheterization could be safely done in animals, Werner Forssmann
passed a catheter from his left antecubital fossa to the right ventricle, walked down to the basement of the clinic, and had an x-ray made to prove that the catheter was in his heart.
Stief CG, Uckert S, Becker AJ, Harringer W, Truss MC, Forssmann
WG, et al.
Krause A, Neitz S, Magert HJ, Schultz A, Forssmann
WG, Schultz-Knappe P, et al.
Garcia JR, Jaumann F, Schulz S, Krause A, Rodriguez-Jimenez J, Forssmann
U, et al.
Schulz-Knappe P, Forssmann
K, Herbst F, Hock D, Pipkorn R, Forssmann