Xu Rongkun, Huang Manyin, Han Xiaosi, Guo Chuanhai, Zhou Yuanzheng, Huang Xingya. Pancreatic polypeptide in the control of #beta#-endorphin and prolactin release from rat anterior pituitary in vivo and in vitro. Acta Physiol Sin 1993; 45 (3): (in Chinese with English abstract).