Dataset: lumbar_learning.csv

Source: K.C. Jacob, M.R. Patel, M.C. Prabhu, N.N. Vanjani, H. Pawlowski, M.A. Munim, K. Singh (2022).
Lateral Lumbar Interbody Fusion: Single Surgeon Learning Curve," World Neurosurgery,
Vol. 164: pp. E411-E419.

Description: Procedure Time (Y, minutes) and Case Number (X) for lateral lumbar interbody fusion
surgery. Data are 178 cases identified on Figure 1A (p. E416). 
3 paramerter asymptotic nonlinear regression was fit: Y = B0 + B1*B2^X   where 0 < B2 < 1

Variables: 
procTime   (minutes)
caseNum