Usoro NI. Int Surg. 2011 Jan-Mar;96(1):28-34.
Departamento de Cirurgia, University of Calabar Teaching Hospital, Calabar, Nigéria.
Usoro NI. Int Surg. 2011 Jan-Mar;96(1):28-34.
Departamento de Cirurgia, University of Calabar Teaching Hospital, Calabar, Nigéria.