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APA Citation
Cuff, R., Sullivan, S., Newman, R., & Rittenberg, C. (n.d.). p14.04: Novice sonographers can be taught to obtain reliable transvaginal cervical length (TVCL) measurements. Ultrasound in obstetrics & gynecology, 48, 209. http://access.bl.uk/ark:/81055/vdc_100037125621.0x000061