Over 250 migrant indigenous children, along with about 20 parents, 9 local and regional representatives, 4 government officials, 5 technology corporate leaders, and 6 support staff for the investigator, have contributed to the study. The participating children and parents were sampled from five different villages in a rural region where large-scale agricultural farms were being operated by corporations. The migrant children with their parents came from rural mountain communities located a few thousand miles away.