Direct link to paper: https://www.annualreviews.org/doi/pdf/10.1146/annurev-bioeng-110220-014644 https://www.annualreviews.org/doi/pdf/10.1146/annurev-bioeng...

Direct link to paper: https://www.annualreviews.org/doi/pdf/10.1146/annurev-bioeng-110220-014644 https://www.annualreviews.org/doi/pdf/10.1146/annurev-bioeng... Section 5.2 is covers the direct measurements, that don't require you exist in some region of a distribution of the population. They don't offer any methods for continuous (the continuous kind) measurements that would be comfortable, which is unfortunate. Section 5.1 covers "calibrated" methods, where you have to calibrate the device using a direct measurement, or fit within some distribution of the population, for the model to work, which will probably be a great annoyance for doctors. I suspect it will be a while before we get continuous and accurate measurements.