d treatreg. Treatment regression
d Program by Ronna Cong, stata Corporation <rcong@@stata.com>
d 
d ^treatreg^ estimates treatment effects models using either Heckman's 
d two-step consistent estimator or full maximum-likelihood. 

f treatreg/treatreg.ado
f treatreg/treat_ll.ado
f treatreg/treatr_p.ado
f treatreg/treatreg.hlp