Application and influencing factors of application of delivery ball exercise to correct breech after 34 weeks of gestation

QI Caixia, XIAO Yuying, QU Huanqing, LING Donglan, LIN Anyun.
The Journal of Practical Medicine . 2022, (19): 2462 -2466 .  DOI: 10.3969/j.issn.1006⁃5725.2022.19.016