[1] Hosp Univ Austral Pilar, Dept Ophthalmol, Buenos Aires, DF, Argentina
[2] Hosp Univ Austral Pilar, Med Transfus Serv, Buenos Aires, DF, Argentina
[3] Univ Austral Pilar, Fac Ciencias Biomed, Buenos Aires, DF, Argentina
[4] Craveri, Bioengn Div, Buenos Aires, DF, Argentina