Ustekinumab and remission in perianal Crohn's disease: A case report C.E. Alcántara-Figueroa; E.F. Coronado-Rivera; E.F. Estela-Vásquez; D.C. Calderón-Cabrera; R.A. Alcántara-Ascón;

Rectal syphilis: A case report C.E. Alcántara-Figueroa; D.C. Calderón-Cabrera; E.F. Estela-Vásquez; E.F. Coronado-Rivera; C.A. Calderón-De la Cruz;

Boerhaave syndrome: A case report of successful conservative treatment D.C. Calderón-Cabrera; E.J. Cobián-Cerna; C. Zanabria-Caya;