APA (7th ed.) Citation

Kraus, F. B., Medenwald, D., & Ludwig-Kraus, B. (2020). Do extreme summers increase blood vitamin D (25-hydroxyvitamin D) levels? PloS one, 15(11), e0242230. https://doi.org/10.1371/journal.pone.0242230

Chicago Style (17th ed.) Citation

Kraus, Frank Bernhard, Daniel Medenwald, and Beatrice Ludwig-Kraus. "Do Extreme Summers Increase Blood Vitamin D (25-hydroxyvitamin D) Levels?" PloS One 15, no. 11 (2020): e0242230. https://doi.org/10.1371/journal.pone.0242230.

MLA (9th ed.) Citation

Kraus, Frank Bernhard, et al. "Do Extreme Summers Increase Blood Vitamin D (25-hydroxyvitamin D) Levels?" PloS One, vol. 15, no. 11, 2020, p. e0242230, https://doi.org/10.1371/journal.pone.0242230.