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Article

Clinician-reported chorionicity and zygosity assignment using single-nucleotide polymorphism-based cell-free DNA: Lessons learned from 55,344 twin pregnancies.

Prenatal diagnosis - 1 Sept 2022

Wojas Anna, Martin Kimberly A, Koyen Malashevich Allyson, Hashimoto Katelyn, Parmar Sheetal, White Roseann, Demko Zachary, Billings Paul, Jelsema Russ, Rebarber Andrei

Abstract excerpt

OBJECTIVE: Prenatal chorionicity assessment relies on ultrasound, which can be confounded by many factors. Noninvasive assessment of zygosity is possible using single nucleotide polymorphism (SNP)-based cell-free DNA testing. Our objective was to determine the relationship between provider-reported chorionicity and SNP-cfDNA assignment of twin zygosity. METHODS: All twin pregnancy blood samples received by a...

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Methodology Data sources Editorial policy Privacy About Contact Helena Bioinformatics

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Identifiers

PMID: 35997139
DOI: 10.1002/pd.6218
PMCID: PMC9541063

Provenance

PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-07.1.

Source receipt: pubmed, retrieved 7 Sept 2026.

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