TY - RPRT TI - Quantification of hormone pulsatility via an approximate entropy algorithm. AU - S M Pincus AU - D L Keefe PY - 1992 DO - 10.1152/ajpendo.1992.262.5.e741 UR - https://pubmed.ncbi.nlm.nih.gov/1590385/ ID - 1590385 ER -