Argentina article human male female 112 Male 103 Humans 101 Female 96 adult 71 Adult 59 major clinical study 56 controlled study 53 priority journal 50 Middle Aged 48 Adolescent 42 adolescent 36 Child 33 child 32 Aged 31 aged 31 Animals 29 Child, Preschool 23 animal 23 prevalence 23 Trypanosoma cruzi 21 Infant 19 Prevalence 19 Triatoma infestans 19 middle aged 18 nonhuman 18