Concentration change of catecholamine and leucine-enkephalin in sheep cerebrospinal fluid after APA microencapsulated bovine chromaffin cells transplantation to the spinal subarachnoid space

• 羊蛛网膜下植入APA微囊化牛嗜铬细胞脑脊液亮氨酸脑啡肽和儿茶酚胺含量的变化