Correction to: On the use of the outcome variable "small for gestational age" when gestational age is a potential mediator: a maternal asthma perspective.

CORRECTION: Following publication of the original article [1], the authors reported that the following four references in Table 2 are incorrect.

Correction

Following publication of the original article [1], the authors reported that the following four references inTable 2 were incorrect:

Lao et al. [15]b

Braken et al. [23]b

Bakhireva et al. [26]b

Clark et al. [28]b

These references have already been introduced in Table 1 and should read:

Lao et al. [30]

Bracken et al. [38]

Bakhireva et al. [41]

Clark et al. [43]

The original article has been updated.