title: Subdividing BI-RADS category 4 breast lesions observed on magnetic resonance imaging: Is it feasible?
authors.affiliation: PhD, Graduate Program Advisor at A.C.Camargo Cancer Center, São Paulo, SP, Brazil. E-mail: almir.bitencourt@accamargo.org.br.
authors.forename: Almir Galvão Vieira
authors.initials: AG
authors.lastname: Bitencourt