国家/地区发文分析
国家/地区发文量
| 国家/地区 | 数量 |
|---|---|
| USA | 664 |
| Canada | 134 |
| England | 86 |
| Australia | 67 |
| Netherlands | 31 |
| Spain | 31 |
| CHINA MAINLAND | 25 |
| France | 21 |
| Brazil | 18 |
| Belgium | 17 |
机构发文量
| 机构 | 数量 |
|---|---|
| UNIVERSITY OF CALIFORNIA SYSTEM | 79 |
| HARVARD UNIVERSITY | 65 |
| CENTERS FOR DISEASE CONTROL & PREVENTION - USA | 61 |
| JOHNS HOPKINS UNIVERSITY | 49 |
| UNIVERSITY OF NORTH CAROLINA | 46 |
| UNIVERSITY OF LONDON | 40 |
| UNIVERSITY OF TEXAS SYSTEM | 37 |
| UNIVERSITY OF VERMONT | 37 |
| MCGILL UNIVERSITY | 36 |
| UNIVERSITY OF CALGARY | 35 |