Studies utilizing rats demonstrate that opioid receptors and endogenous opioid peptides appear very early in the CNS development (2).
Studies utilizing rats demonstrate that opioid receptors and endogenous opioid peptides appear very early in the CNS development (2).
通过大鼠的研究表明，阿片受体和内源性阿片肽在CNS形成过程中出现很早[2]。