Background: A diagnostic lung biopsy may be required in some cases of fibrotic interstitial lung diseases (ILD). Transbronchial cryobiopsy has been suggested as a possible alternative to surgical lung
BPi-n: the difference between the intra-radial artery and noninvasive BP;*: compared with intra-radial artery BP, P#: the coefficient, P(n = 85,M±SD,mmHg).