title: [Summaries of the papers presented at the XI investigative sessions, Pediatric Hospital, National Medical Center, Mexican Institute of Social Security, February 1991, Mexico, D.F. Part II].
mesh_terms: D006801:Humans; D010372:Pediatrics
vernacular_title: Resúmenes de los trabajos presentados en las XI jornadas de investigacón, Hospital de Pediatría, Centro Médico Nacional, Instituto Mexicanel Seguro Social, Febrero 1991, México, D.F. Part II.