fester, bias in medical technologies. thank you very muc joining fester, thank you very much for joining us. just tell it a little bit about your research and why he conducted it. it is bit about your research and why he conducted it conducted it. it is a pleasure to be here. conducted it. it is a pleasure to be here- this conducted it. it is a pleasure to be here. this research conducted it. it is a pleasure to be here. this research came - conducted it. it is a pleasure to be here. this research came from - conducted it. it is a pleasure to bej here. this research came from the covid i9 pandemic. i am a practising pulmonary physician and during a pandemic when caring for certain patients we notice the pulse oximeter seem to be less accurate when we looked at the more accurate lavatory test called arterial blood gas that we don t perform as often. we saw that there seem to be this discrepancy and we didn t quite understand why so we looked at, you know, skin tone is a factor and