Relapse-free efficacy at @ months was @ % ( @ % CI @-@ ) with tafenoquine @ mg , @ % ( @-@ ) with tafenoquine @ mg , @ % ( @-@ ) with tafenoquine @ mg , @ % ( @-@ ) with tafenoquine @ mg , @ % ( @-@ ) with primaquine , and @ % ( @-@ ) with chloroquine alone .