@article{JRIArticle656, title={The Effect of a Newly Designed Needle on the Pain and Bleeding of Patients During Oocyte Retrieval of a Single Follicle}, author={Nakagawa, Koji and Nishi, Yayoi and Kaneyama, Masayo and Sugiyama, Rie and Motoyama, Hiroshi and Sugiyama, Rikikazu and}, journal={Journal of Reproduction \& Infertility}, volume={16}, number={4}, pages={207}, year={2015}, publisher={Avicenna Research Institute} }