TY - RPRT TI - Using smoothing splines for detecting ventilatory thresholds. AU - D L Sherrill AU - S J Anderson AU - G Swanson PY - 1990 DO - 10.1249/00005768-199010000-00021 UR - https://pubmed.ncbi.nlm.nih.gov/2122169/ ID - 2122169 ER -