中国数字化期刊

1985年创刊，中华医学会主办。本刊办刊初期为内部刊物，1993年3月经批准国内外公开发行，编辑部设在复旦大学附属华山医院内。

动动

Pacer's mission is to help everyone be active and feel awesome. Pacer is providing service through mobile internet technology to millions of users to improve their health.

动动

Pacer's mission is to help everyone be active and feel awesome. Pacer is providing service through mobile internet technology to millions of users to improve their health.

元素周期表

Interactive periodic table with dynamic layouts showing names, electrons, oxidation, trend visualization, orbitals, isotopes, and compound search. Full descriptions from write-up sources.