1993

1. Nonincreased risk of nosocomial infection during a 22-day housekeeping personnel strike in a tertiary hospital

   Infection Control & Hospital Epidemiology, Vol. 14, Núm. 12, pp. 706-712

2. Validity of the cross-sectional study for the ascertainment of nosocomial infection risk factors

   European Journal of Epidemiology, Vol. 9, Núm. 3, pp. 263-268