Between Sept @ , @ , and March @ , @ , @ patients were randomly assigned to a treatment group ( chloroquine plus tafenoquine @ mg -LSB- n = @ -RSB- , @ mg -LSB- n = @ -RSB- , @ mg -LSB- n = @ -RSB- , @ mg -LSB- n = @ -RSB- ; or to chloroquine plus primaquine -LSB- n = @ -RSB- ; or chloroquine alone -LSB- n = @ -RSB- ) .