Figure 1

Flowchart of noninvasive prenatal testing strategy. (a) The genetic map of this recruited family. (b) Flowchart of the experiment and bioinformatics pipeline. cffDNA, cell-free fetal DNA; HMM, hidden Markov model.
Flowchart of noninvasive prenatal testing strategy. (a) The genetic map of this recruited family. (b) Flowchart of the experiment and bioinformatics pipeline. cffDNA, cell-free fetal DNA; HMM, hidden Markov model.