可贵者胆,所要者魂——访江苏美术出版社社长顾华明

The role of opioid peptides during pregnancy and parturition has not been defined. They may function as natural analgesics during parturition. Pain thresholds were tested during pregnancy but, in contrast with a previous study, were found not to change. Plasma Beta-endorphin-like-immunoreactivity (B... View More