Results of a 4-week head down tilt with and without LBNP countermeasure: II. Cardiac and peripheral hemodynamics - comparison with a 25-days spaceflight. - Arbeille,P.H.; Gauquelin,G.; Pottier,J.M.; Pourcelot,L.; Guell,A.; Gharib,C. (Aviat Space Environ Med, 1992)