0120-29520120-2952S0120-2952201900010002810.15446/rfmvz.v66n1.79389ChileChile000420190004201966128341988201141-52013393-404200917922204-10201391552169-77201143562-7020134544552-720175250-1200929259-671999^s30^s3030591-520035133125-3120042455198-2032013201131253-42013272-88198315371-2199219921255320-420163969-7520153555367-7520144633419-24[NRC] National Research Council2007620092955418-20199729221-3419783016-92002448-920153555410-120131986206-1520169422533-4119901022116-20