nostr:npub10teyc6zn4578rr4vwp7v58ses8q5vz976pwatnvmrqy7cf5z683slyd9mc The study says it uses GLI reference points for the DLCO LLN. Searching for `GLI DLCO` that turns up the study, which assigns 5%-ile as the LLN threshold, so roughly double the normal rate.