GTX Corp Launches COVID-19 IgG/IgM Antibody Rapid Test Kit Expanding its Line of Medical Products and Supplies LOS ANGELES, CALIFORNIA, Dec. 17, 2020 (GLOBE NEWSWIRE) -- GTX Corp (OTC: GTXO) (“GTX” or the “Company”), a pioneer in the field of health and safety wearable GPS human and asset tracking systems...