% latex table generated in R 3.4.1 by xtable 1.8-2 package
% Tue Jan 29 18:01:27 2019
  \hline
S1 & 1,909 & 469 & \citet{graham2018budget} \\ 
  P1/S2 & 5,805 & 606 & \citet{skinner2018healthcare} \\ 
  P2 & 7,710 & 805 & \citet{skinner2018healthcare} \\ 
   \hline
