1. Differential diagnosis in child sexual abuse;Hey, F.; Buchan, P.C.; Littlewood, J.M.; Hall, R.I.;Lancet,1987
2. Anal appearance and child sexual abuse;Clayden, G.S.;Lancet,1987
3. Buggery in childhood: a common syndrome of child abuse;Hobbs, C.J.; Wynn, J.M.;Lancet,1986
4. Anal pressures in the diagnosis of Hirschsprung's disease;Lawson, J.O.N.; Nixon, H.H.;J Pediatr Surg,1967
5. The automatic action of the sphineter ani;Gowers, W.R.;Proceedings of the Royal Society of London,1877