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Garcia de la Hera M, Davo MC, Ballester-Añón R, Vioque J.Garcia de la Hera M, et al. Among authors: ballester anon r.Eval Health Prof. 2011 Sep;34(3):349-61. doi: 10.1177/0163278711401743. Epub 2011 Mar 16.Eval Health Prof. 2011.PMID: 21411470
Balaguer Perigüell E, Ballester Añón R.Balaguer Perigüell E, et al. Among authors: ballester anon r.Asclepio. 1977;29:67-72.Asclepio. 1977.PMID: 11628250Spanish.No abstract available.