Correction

This article refers to:

Seasonality of plasma tryptophan and kynurenine in pregnant mothers with a history of seasonal affective disorder: Vulnerability or adaptation?

Article title: Seasonality of plasma tryptophan and kynurenine in pregnant mothers with a history of seasonal affective disorder: Vulnerability or adaptation?

Authors: Levitan R. D., Sqapi, M., Atkinson, L., Murphy, K., Levitt, A., Bocking, A., Post, M., Knight, J. A., & Matthews, S. G.

Journal: The World Journal of Biological Psychiatry

DOI: http://dx.doi.org/10.1080/15622975.2020.1769189

When this article was first published online, the footnotes were missing from the caption for Figure 1.

The caption of Figure 1 has been updated in the online version of the article and the corrected caption is given below:

Figure 1. Maternal Plasma Tryptophan Levels Based on Maternal Group and Season of Conception. (A) is based on the first maternal plasma sample (pregnancy week 9–15). (B) is based on the second maternal plasma sample (pregnancy week 23–29). ¹estimated using standard clinical methods – last menstrual period and/or ultrasound. ²when estimated conception dates are at the extreme beginning or end of a season, actual sampling times may be 1–2 weeks preceding or following the listed season. ³predicted based on estimated date of conception. N = sample size. Data are expressed as Mean +/− 95% Confidence Interval.