Duarte RJ, Bandeira RA, Vattimo A, Reis ST, Leite KR, Cristofani LM, Srougi M.
Difference between the Inflammatory Reaction Caused by the Placement of a Conventional Laparoscopic Access and a Single Access (Single Port) in Pigs. 
World J Lap Surg
2015;
8
(1):1-6.