title: Primary gastric, duodenal, and rectal signet ring cell carcinoma revealed by cutaneous metastasis.
authors: Department of Gastroenterology, Medical School, Oujda, Morocco. zahi109@hotmail.com
authors: Z
authors: Z
authors: Ismaili
authors: S
authors: S
authors: Dekhay
authors: A
authors: A
authors: Moussaoui
authors: A
authors: A
authors: Jahid