Clinical Effects of Atosiban Acetate Combined with Nifedipine on Threatened Preterm Labor in Primiparas Aged ≥35 Years
HUA Su-li, ZHANG Wen-hui, GAO Wan-li, ZHANG Tian-yuan, YAN Yi-jie
Chinese Journal of Rational Drug Use . 2026, (9): 84 -89 .  DOI: 10.3969/j.issn.2096-3327.2026.09.012