Task: Translation
Input (English): English sentence: For an excellent overview of heterogeneity of treatment effects in field experiments, see chapter 12 of Gerber and Green (2012) .
Output (Igbo): Maka nlezianya kachasá»‹ mma nke gwụgw na nyocha nke ubi, lee isi 12 nke Gerber and Green (2012) .