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Fetal crown–rump length and estimation of gestational age in an ethnic Chinese population - Sahota - 2009 - Ultrasound in Obstetrics & Gynecology - Wiley Online Library
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Table 4 from Ultrasound Reference Chart Based on IVF Dates to Estimate Gestational Age at 6–9 weeks' Gestation | Semantic Scholar
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Table II from Automatic Gestational Age Estimation Based on Crown Rump Length and Gestational Sac | Semantic Scholar
![E-learn Radiology on Twitter: "crown rump length #CRL and gestational age #GA #reference #foamrad #obstetrics #ultrasound https://t.co/1owwrFGD3Y https://t.co/i7HBoHUpuw" / Twitter E-learn Radiology on Twitter: "crown rump length #CRL and gestational age #GA #reference #foamrad #obstetrics #ultrasound https://t.co/1owwrFGD3Y https://t.co/i7HBoHUpuw" / Twitter](https://pbs.twimg.com/media/CqMliohUIAE8wd8.jpg)