Home Collection Human Pancreas development 10-11 pcw fetus 1 Mallory stain H&E stain Insulin Glucagon CRL - 60 mm; acidic formalin х20 50% 100% CRL - 60 mm; acidic formalin х20 50% CRL - 60 mm; acidic formalin 100% CRL -60 mm; acidic formalin 20% 100%