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References from A decade of decline and regional disparity: Trends and associated factors in use of ritodrine hydrochloride for threatened preterm labor in Japan, a nationwide ecological study. Local targets link to admitted publications; unresolved targets remain external evidence.
National, regional, and global estimates of preterm birth in 2020, with trends from 2010: a systematic analysis
10.1016/s0140-6736(23)00878-4 · 2023 · External reference
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Practice bulletin No. 171: Management of Preterm Labor
10.1097/aog.0000000000001711 · 2016 · External reference
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Relationship between maternal mortality and ritodrine hydrochloride as a tocolytic agent in Japan
10.1111/jog.15951 · 2024 · External reference
Inappropriate use of ritodrine hydrochloride for threatened preterm birth in Japan: a retrospective cohort study using a national inpatient database
10.1186/s12884-019-2352-1 · 2019 · External reference
10.21203/rs.3.rs-7777057/v1
10.21203/rs.3.rs-7777057/v1 · External reference
Prolonged administration of ritodrine hydrochloride in women with premature labor or threatened premature delivery based on empirical data in Japan
10.1038/s41598-025-07530-4 · 2025 · External reference
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Physicians' perception of the “guidelines for obstetrical practice in Japan” and the reasons for different compliances
2015 · External reference
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Changes in preterm and extremely preterm birth rates in Japan after the introduction of obstetrical practice guidelines in 2008
10.1111/jog.15722 · 2023 · External reference
Amelioration of prevalence of threatened preterm labor during the COVID‐19 pandemic: nationwide database analysis in Japan
10.1038/s41598-022-19423-x · 2022 · External reference
Threatened abortion, threatened premature labor, and preterm birth during the first state of emergency for COVID‐19 in 2020 in Japan
10.1111/jog.15203 · 2022 · External reference
Trends in intensive neonatal care during the COVID‐19 outbreak in Japan
10.1136/archdischild-2020-320521 · 2021 · External reference
National, regional, and global estimates of preterm birth in 2020, with trends from 2010: a systematic analysis
10.1016/s0140-6736(23)00878-4 · ExternalCitation · doi-reference
Amelioration of prevalence of threatened preterm labor during the COVID‐19 pandemic: nationwide database analysis in Japan
10.1038/s41598-022-19423-x · ExternalCitation · doi-reference
Prolonged administration of ritodrine hydrochloride in women with premature labor or threatened premature delivery based on empirical data in Japan
10.1038/s41598-025-07530-4 · ExternalCitation · doi-reference
Practice bulletin No. 171: Management of Preterm Labor
10.1097/aog.0000000000001711 · ExternalCitation · doi-reference
Threatened abortion, threatened premature labor, and preterm birth during the first state of emergency for COVID‐19 in 2020 in Japan
10.1111/jog.15203 · ExternalCitation · doi-reference
Changes in preterm and extremely preterm birth rates in Japan after the introduction of obstetrical practice guidelines in 2008
10.1111/jog.15722 · ExternalCitation · doi-reference
Relationship between maternal mortality and ritodrine hydrochloride as a tocolytic agent in Japan
10.1111/jog.15951 · ExternalCitation · doi-reference
Trends in intensive neonatal care during the COVID‐19 outbreak in Japan
10.1136/archdischild-2020-320521 · ExternalCitation · doi-reference
Inappropriate use of ritodrine hydrochloride for threatened preterm birth in Japan: a retrospective cohort study using a national inpatient database
10.1186/s12884-019-2352-1 · ExternalCitation · doi-reference
10.21203/rs.3.rs-7777057/v1
10.21203/rs.3.rs-7777057/v1 · ExternalCitation · doi-reference
