No effect of oral insulin on residual beta-cell function in recent-onset type I diabetes (the IMDIAB VII). IMDIAB Group. - Pozzilli P; Pitocco D; Visalli N; Cavallo MG; Buzzetti R; Crinò A; Spera S; Suraci C; Multari G; Cervoni M; Manca Bitti ML; Matteoli MC; et al. (Diabetologia, 2000)