• Bacterias multirresistentes a los antibióticos aisladas de niños hospitalizados de "alto riesgo" 

      Peñaranda, María Elena; Brenes, Carmen; Vargas, Guillermo; Mata Jiménez, Leonardo (Revista Médica del Hospital Nacioanl de Niños Dr. Carlos Sáenz, 1978)
      Between January and September, 1977, 43 strains of Klebslella-Enterobac-ter, 17 of Pseudomonas and 6 of Escherlchla coli —all resistant to several drugs—were isolated from 66 children hospitalized in the National Children's ...