| ²é¿´: 3400 | »Ø¸´: 2 | |||
flyzyf95гæ (СÓÐÃûÆø)
|
[ÇóÖú]
¹ØÓÚmeta·ÖÎöµÄÉó¸åÒâ¼û»Ø¸´ÎÊÌâ ÒÑÓÐ2È˲ÎÓë
|
|
Ïò´ó¼ÒÇë½ÌÈçϼ¸¸öÎÊÌ⣬¹ØÓÚmeta·ÖÎöµÄÉó¸åÒâ¼û£¬ÈçºÎ»Ø¸´£º ÒÔÏÂÊÇÎÒµÄһƪÎÄÕÂÐÞ¸åÓöµ½µÄÎÊÌ⣺ 1.Why there is different result in case-control and cohort studies. They need to try to give an explanation based on the methodology of the studies they include. 2. The results were only significant in cohort studies and not in RCT's or case control studies for instance. Please assess this critically and discuss bias of observational designs in this regard. 3. Authors need to detail the search syntax better. This needs to clarify potential selection bias of the study. Specifically add search syntax used and PICO or SPICE criteria. It is clear that the quality of the initial search is critical for the overall reliability of the study and its findings. лл~ |
» ÊÕ¼±¾ÌûµÄÌÔÌûר¼ÍƼö
article |
» ²ÂÄãϲ»¶
¹ú×ÔÈ»ÃæÉϸ´ÅÌ~»¶ÓÌÖÂÛ
ÒѾÓÐ6È˻ظ´
ÊÛSCIÒ»ÇøÎÄÕ£¬ÎÒ:8.O.551.O.5.4,¿ÆÄ¿È«,¿ÉÙ¤¼±
ÒѾÓÐ4È˻ظ´
ÓжàÉÙÈËÊǽñÌì²éϵͳ֪µÀ½á¹ûµÄ£¿
ÒѾÓÐ17È˻ظ´
ÊÛSCIÒ»ÇøT0PÎÄÕ£¬ÎÒ:8.O.55.1.O.54,¿ÆÄ¿ÆëÈ«,¿É+¼±
ÒѾÓÐ4È˻ظ´
»ù½ð²»ÖУ¬¹²Ãã
ÒѾÓÐ5È˻ظ´
¿´°åÉÏÕâô¶àÖеģ¬ÓеãÏñ50ÈËȺÀï49¸öÈ˶¼ÊÇÆ×ÓµÄÄÇÖָоõ¡¡
ÒѾÓÐ3È˻ظ´
ÎÒ²»Àí½â£¡
ÒѾÓÐ23È˻ظ´
2026ÄêµÄ¹ú¼ÒÉç¿Æ»ù½ðÏîĿͨѶÆÀÉóµÄйæÔòÓëж¯Ïò¡¢ÐÂÌôÕ½
ÒѾÓÐ10È˻ظ´
ϵͳ²é²»µ½
ÒѾÓÐ10È˻ظ´
Ôõô²é°¡
ÒѾÓÐ5È˻ظ´
» ±¾Ö÷ÌâÏà¹Ø¼ÛÖµÌùÍÆ¼ö£¬¶ÔÄúͬÑùÓаïÖú:
¹ØÓÚSynthetic Communication Éó¸åÒâ¼ûµÄ¼¸µãÒÉ»óºÍ»Ø¸´ÎÊÌ⣬¿ÒÇë´óÉñÃÇÖ¸µã~
ÒѾÓÐ4È˻ظ´
»Ø¸´Éó¸åÒâ¼ûÇóÖú
ÒѾÓÐ5È˻ظ´
Éó¸åÒâ¼û»Ø¸´ÓеãСÎÊÌ⣨applied material and interfaces£©
ÒѾÓÐ8È˻ظ´
Éó¸åÒâ¼û»Ø¸´£¬ÇóÖú
ÒѾÓÐ10È˻ظ´
ÈçºÎ»Ø¸´Éó¸åÒâ¼û£¨Ó¢ÎÄ£©
ÒѾÓÐ7È˻ظ´
»Ø¸´Éó¸åÒâ¼ûʱ¼äÒ»°ã¶à¾Ã
ÒѾÓÐ9È˻ظ´
ÕâÑùµÄÉó¸åÒâ¼ûÈçºÎ»Ø¸´
ÒѾÓÐ5È˻ظ´
Éó¸åÒâ¼ûÈçºÎ»Ø¸´
ÒѾÓÐ8È˻ظ´
»Ø¸´Éó¸åÒâ¼û£¬ÐèÒª°ÑÐ޸ĺóµÄÄÚÈݸ´ÖƵ½Òâ¼ûÏÂÃæÂð
ÒѾÓÐ4È˻ظ´
»Ø¸´JMCAÉó¸åÒâ¼ûµÄʱ¼ä
ÒѾÓÐ33È˻ظ´
ÈçºÎ»Ø¸´Éó¸åÈËÒâ¼û
ÒѾÓÐ17È˻ظ´
Ó¢ÎÄÉó¸åÒâ¼û²»ÖªÈçºÎ»Ø¸´£¬ÇóÖú£¡¼±
ÒѾÓÐ6È˻ظ´
ÇóÖú Ôõô»Ø¸´Éó¸åÒâ¼û
ÒѾÓÐ8È˻ظ´
¹ØÓÚÐÂÓ±ÐÔµÄÉó¸åÒâ¼û¸ÃÔõÑù»Ø¸´
ÒѾÓÐ25È˻ظ´
Éó¸åÒâ¼ûÈçºÎ»Ø¸´£¬ÇóÖú
ÒѾÓÐ4È˻ظ´
ÕâÖÖÉó¸åÒâ¼ûÊÇʲôÒâ˼°¡£¿Ôõô»Ø¸´ºÃŶ
ÒѾÓÐ41È˻ظ´
ÂÛÎÄÉó¸åÒâ¼û»ØÀ´ÁË£¬´ó¼Ò¿´¿´ÈçºÎ»Ø¸´°¡
ÒѾÓÐ16È˻ظ´
Éó¸åÒâ¼û»Ø¸´£¨¸ñʽ·½ÃæµÄ£©£¬ººÓï´ó¸ÅÒâ˼ÒѾд³öÀ´£¬Çó·Òë
ÒѾÓÐ5È˻ظ´
Éó¸åÒâ¼ûÔõô»Ø¸´
ÒѾÓÐ3È˻ظ´
Ò»Ìì ¾Í»Ø¸´Éó¸åÒâ¼û »á²»»á²ÙÖ®¹ý¼±£¿
ÒѾÓÐ17È˻ظ´
¶ÔÉó¸åÒâ¼ûµÄ»Ø¸´
ÒѾÓÐ11È˻ظ´
»Ø¸´Éó¸åÒâ¼ûǰµÄ¿ÍÌ×»°
ÒѾÓÐ6È˻ظ´
Çë´ó¼Ò°ïæ¿´¿´ÈçºÎ»Ø¸´Éó¸åÒâ¼û
ÒѾÓÐ4È˻ظ´
Éó¸åÒâ¼û»Ø¸´Çë½Ì
ÒѾÓÐ4È˻ظ´
Éó¸åÈËÒâ¼ûÈçºÎ»Ø¸´£¿
ÒѾÓÐ11È˻ظ´
zhuguiqi
ͳæ (³õÈëÎÄ̳)
- Ó¦Öú: 1 (Ó×¶ùÔ°)
- ½ð±Ò: 145.5
- ºì»¨: 1
- Ìû×Ó: 36
- ÔÚÏß: 6.3Сʱ
- ³æºÅ: 3029296
- ×¢²á: 2014-03-08
- ÐÔ±ð: GG
- רҵ: ¸ÎÏËά»¯¡¢¸ÎÓ²»¯ÓëÃÅÂö¸ß
¡¾´ð°¸¡¿Ó¦Öú»ØÌû
| Ç°ÃæµÄÎÊÌ⣬ÎÒ¹À¼ÆÄã¶ÔÑо¿ÀàÐͽøÐÐÁËÑÇ×é·ÖÎö°É£¬µÃ³ö²»Í¬µÄ½á¹û£¬±à¼²¿ÒªÇóÄã¶Ô²»Í¬½á¹û¸ø³ö½âÊÍһϣ¬Õâ¸öÔÚÌÖÂÛ²¿·Ö˵Ã÷һϼ´¿É¡£¡£ |

2Â¥2014-07-31 17:12:56
reffle
ľ³æ (ÖøÃûдÊÖ)
- Ó¦Öú: 7 (Ó×¶ùÔ°)
- ½ð±Ò: 4830
- É¢½ð: 520
- ºì»¨: 11
- ɳ·¢: 1
- Ìû×Ó: 1019
- ÔÚÏß: 143.4Сʱ
- ³æºÅ: 2982366
- ×¢²á: 2014-02-21
- ÐÔ±ð: GG
- רҵ: »¯Ñ§»·¾³ÎÛȾÓ뽡¿µ
¡¾´ð°¸¡¿Ó¦Öú»ØÌû
|
1¶Ô²¡Àý¶ÔÕÕÑо¿ºÍ¶ÓÁÐÑо¿µÄ²»Í¬½á¹û½øÐз½·¨Ñ§µÄ½âÊÍ¡£2¶ÓÁÐÑо¿ÓвîÒ쵫RCTÓ벡Àý¶ÔÕÕÑо¿ÎÞ²îÒì½øÐÐÖØµã½âÊͲ¢ÃèÊöÉè¼ÆÊ±µÄÆ«ÒÐ3³ÎÇåÑ¡ÔñÆ«ÒÐ [ ·¢×ÔÊÖ»ú°æ http://muchong.com/3g ] |

3Â¥2014-08-01 06:01:57









»Ø¸´´ËÂ¥
ͶƱ: