An association of serum vitamin D< 40 nmol/l with acute respiratory tract infection in young Finnish menI Laaksi, JP Ruohola,P Tuohimaa,A Auvinen, R Haataja,H Pihlajamäkiuser-5f8cf7e04c775ec6fa691c92（2012）引用 0|浏览2暂无评分AI 理解论文溯源树样例生成溯源树，研究论文发展脉络Chat Paper正在生成论文摘要
