@article{Ramirez:165855,
      author        = "Ramirez, J.M. and Aguilella, V. and Arribas, D. and
                       Martinez, M.",
      title         = "{Transanal full-thickness excision of rectal tumours:
                       should the defect be sutured? a randomized controlled
                       trial}",
      year          = "2002",
}