Correction to: Orphanet J Rare Dis (2021) 16:412 https://doi.org/10.1186/s13023-021-02025-7

Following the publication of the original article [1] the authors noticed an inconsistency between the following sentences:

“Diagnostic yield was significantly higher among fetal samples (58.0%, n = 51/88) than postnatal samples (38.9%, n = 177/455; z = 3.32, p < 0.0009)” in the “Results” section of the “Abstract”

and

“Diagnostic yield was significantly higher among fetal samples (58.0%, n = 51/88) compared to postnatal samples (38.9%, n = 177/455; z = 3.32, p < 0.0001)” in the “Results” section of the main text.

The correct information is the one reported in Figure 2: “Diagnostic yield was significantly higher among fetal samples (59.0%, n = 52/88) than postnatal samples (38.7%, n = 176/455; z = 3.55, p < 0.001)”.

The original article has now been updated with the “Results” section of the “Abstract” and “Results” section of the main text having been corrected as per Figure 2.