Oscar started following the work of Milagros Milián, Universidad Privada San Juan Bautista, Lima. 2012-05-17 21:28:19 -0700

Oscar started following the work of Lizbeth Gutiérrez, Universidad Autónoma de Nuevo León, FACPYAP. 2011-11-10 13:13:02 -0800

Oscar started following the work of Jose Ragas, UC Davis, History. 2011-10-30 09:40:45 -0700