A. Herrara

Epidemiologic factors, morbidity and mortality after femoral neck fractures in the elderly. A comparative study: internal fixation vs. hemiarthroplasty.

V. Canales, J. Rodriguez, A. Herrara, 1987, Acta orthopaedica Belgica.

Home Alone: Children as Caretakers in Leon, Nicaragua.

L. Dahlgren, R. Peña, A. Herrara, 2009 .