Evaluation of Patient Controlled Analgesia with Ropivacaine Plus Fentanyl on Labor Pain Rel ief[J]. Journal of Sun Yat-sen University (Medical Sciences), 2002, 23(4).
Evaluation of Patient Controlled Analgesia with Ropivacaine Plus Fentanyl on Labor Pain Rel ief[J]. Journal of Sun Yat-sen University (Medical Sciences), 2002, 23(4).DOI: