G. Parra

Ultrasound study of acute appendicitis in children with emphasis upon the diagnosis of retrocecal appendicitis

P. López, L. Ceres, I. Alonso, 2005, Pediatric Radiology.

Acute serum sickness in normal and C6 deficient rabbits: role of membrane attack complex.

A. Michael, R. Vernier, G. Parra, 1992, International journal of experimental pathology.

Sintomatología depresiva asociada al trabajo como causa de incapacidad temporal en la Comunidad de Madrid Work related depression syntoms as short-term disability cause in Madrid Comunity

A. Galligo, G. Parra, R. Salazar, 2005 .

A kit of human polyclonal IgG for the diagnosis of infectious processes

E. Sánchez, A. Gutiérrez, L. Marrero, 1999 .