Hi Histonetters, What control should I use for Okajima's Stain for hemoglobin? Thank you for your help! Kelly Cross B.S., HT (ASCP) Medical Laboratory Supervisor Texas A&M University VTPB Histology Lab VMA bldg. 214 College Station, TX 77843-4467 Office: 979-862-3658 Lab: 979-845-5149