Dataset:  gastroplasty_lc.csv

Source: M. Saumoy, Y. Schneider, X.K. Zhou, A. Shukla, M. Kahaleh, L. Aronne, R.Z. Sharaiha (2018).
"A Single-Operator Learning Curve Analysis for the Endoscopic Sleeve Gastroplasty,"
Gasrtrointestinal Endoscopy, Vol. 87, #2, pp. 442-447.

Description: Procedure Time in minutes and Case Number identified for 87 points
approximated from Figure 3 (p. 445). Authors fit a 3 degree B-spline and 
Inverse Linear Regression: Y = a + b*(1/X)

Variables/Names
procTm (minutes)
tmOrder  (Case Number)