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Seasonal Changes in Vitamin D Levels of Healthy Children in..:

Won, Jong Woo ; Jung, Seong Kwan ; Jung, In Ah.
Pediatric Gastroenterology, Hepatology & Nutrition.  24 (2021)  2 - p. 207 , 2021
Link: https://doi.org/10.5223/pghn.2021.24.2.207