404. That’s an error.
The requested URL /bookmarks/mark?op=add&bkmk=http%3A//diabetes.diabetesjournals.org/content/62/7/2157&title=Direct%20Autocrine%20Action%20of%20Insulin%20on%20%CE%B2-Cells%3A%20Does%20It%20Make%20Physiological%20Sense%3F
was not found on this server. That’s all we know.