Pengaruh laser akupunktur di titik Ex-B3 Weiwanxiashu terhadap gambaran Histologi Pankreas dan kadar gula daarah Model Tikus Diabetes Tipe 2 = The effect of laser acupuncture at Ex-B3 Weiwanxiashu point on histology findings of pancreas and blood sugar levels in Type 2 Diabetes Rats Model