“…The method we used is a modification devised by us, from methods which have previously been described by Steffen (12,13) and by Nelken et al (10). In addition Gartner and NordCn (5) have reported that the leukocytes from diabetics differ from leukocytes from normal people, in that they are more often coated with PAS-positive material when examined on PAS-stained smears.…”