glycosylated hemoglobin a1c testglycated hemoglobin a1chgb a1c glycosylatedglycosylated hemoglobin hba1cglycosylated hemoglobinglycosylated hemoglobin diabetesglycosylated hemoglobin in pregnancyelevated glycosylated hemoglobinincreased glycosylated hemoglobinglycosylated hemoglobin measurementnormal glycosylated hemoglobinglycosylated hba1c