2018-12-062018-12-062008https://hdl.handle.net/2152.3/10831Handwritten notes from Dr. Thornton to Joe Kerwin regarding the LSAH and Exercise Tolerance Test for former astronauts.LSAHJoe KerwinDr. William ThorntonSpace Medicinedrafthandwritten notesexerciseExercise Tolerance Testcorrespondenceastronaut health