Dyfyniad APA

Kappelman, M. D. (2013). Environmental Factors and IBD: Elusive or non-existent? Inflamm Bowel Dis.

Dyfyniad Arddull Chicago

Kappelman, Michael D. "Environmental Factors and IBD: Elusive or Non-existent?" Inflamm Bowel Dis 2013.

Dyfyniad MLA

Kappelman, Michael D. "Environmental Factors and IBD: Elusive or Non-existent?" Inflamm Bowel Dis 2013.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.