0658名無しさん@英語勉強中 (ワッチョイ 59d3-LovI)
2018/03/18(日) 00:25:58.73ID:EXrAzRKI0Shunning from the Sun is the common cause of Vitamine D deficiency and will
cause a variety of symptoms. For example...
https://www.healthline.com/nutrition/vitamin-d-deficiency-symptoms