Effect of Community Volunteering on Physical ActivityVijay R. Varma,Erwin J. Tan,Alden L. Gross,Greg Harris,William Romani,Linda P. Fried,George W. Rebok,Michelle C. CarlsonAmerican Journal of Preventive Medicine(2016)引用 61|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