1. To err is human: building a safer health system,1999
2. Standardized vasoactive medications: a unified system for every patient, everywhere;Niemi;Hosp Pharm,2005
3. Pediatric medication errors: what do we know? What gaps remain?;Kaushal;Ambul Pediatr,2004
4. “Rule of 6” not optimal for patient safety;Grissinger;P&T,2003