Identification of a statistical method as a quality tool: patient's length of stay in the operating room

Guiomar Terezinha Carvalho Aranha; Reinaldo Wilson Vieira; Pedro Paulo Martins de Oliveira; Orlando Petrucci Junior; Benedito Galvão Benze; Lindemberg da Mota Silveira Filho; Karlos Alexandre de Souza Vilarinho; Lívia Paschoalino de Campos

Braz J Cardiovasc Surg. 2009;24(3):382-390