We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleAlterations of Smad expression and activation in defining 2 subtypes of human head and neck squamous cell carcinoma.AuthorsXie, Wen; Aisner, Seena; Baredes, Soly; Sreepada, Gangadhar; Shah, Rasesh; Reiss, MichaelPublicationHead & Neck, 2013, Vol 35, Issue 1, p76ISSN1043-3074Publication typearticleDOI10.1002/hed.22924