Del Mar, Bruce2018-02-132018-02-131980-12-30http://hdl.handle.net/2152.3/5695This image reflects a letter written by Bruce Del Mar to Dr. William Levin of the UTMB in Galveston, regarding the loan and return of several pieces of equipment including the Pressurometer II.Bruce Del MarWilliam ThorntonletterDel Mar AvionicsJohn WallaceSpace MedicineUTMBAmbulatoryBlood Pressure MonitorBlood Pressure RecorderWilliam LevinPressurometer