2018-04-182018-04-181974-04-23http://hdl.handle.net/2152.3/8157Graphs of biomedical data for Skylab crew members labeled Skylab Crew Health Trend-Calf Circumference dated Apr 23, 1974Skylab 2Skylab 3Skylab 4biomedical dataDr. Charles BerryCrew Health TrendCalf CircumferenceSpace MedicineSkylab Crew Health Trend-Calf Circumference Apr 23, 1974