Thornton, William2018-02-132018-02-13Unknownhttp://hdl.handle.net/2152.3/5690This image reflects a handwritten letter written by William E. Thornton to Bruce Del Mar regarding the Ear Densitogram.Bruce Del MarWilliam ThorntonJohn WallaceSpace MedicineUTMBhandwritten notesAmbulatoryBlood Pressure MonitorBlood Pressure RecorderEar Densitogramdrawing