Lack of agreement between the World Health Organization Category of impaired glucose tolerance and the American Diabetes Association category of impaired fasting glucose. - Gomez-Perez,FJ.; Aguilar-Salinas,CA.; Lopez-Alvarenga,JC.; Perez-Jauregui,J.; Guillen-Pineda,LE.; Rull,JA. (Diabetes Care, 1998)