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. 2013 Apr 1;8(4):e59978. doi: 10.1371/journal.pone.0059978

Table 4. Comparison between RCTs already included in the SR and eligible Korean RCTs.

First author(year) Condition Type of database Number of primary studies (Korean) Author’s conclusion (quote) SR’s result (+/−) Newly Eligible Korean RCTs compared with previous SRs
Number of RCT [ref] Result(+/−)
Jang(2008) [1] Erectile dysfunction English, Korean, Chinese, Japanese 7(4) … provide suggestive evidence + 2[38], [39] +
Kim(2011) [6] Diabetes English, Korean, Japanese 3(2) …. effectiveness. is not convincing. 0
Jia(2012) [8] Ischemic heart disease English, Chinese 18(0) … more effective than..further. to verify the efficacy. + 0 +
An(2011) [9] obstructive pulmonary English, Chinese 12(0) … show promising evidence … is uncertain due to potential risk of bias of. + 0 +
Seida(2011) [10] Common Cold English 5(0) . significantly reduced….insufficient evidence … + 0 +
Seely(2008) [11] Pregnancy and Lactation English Not clear . conflicting evidence … no human studies. Not clear
Buettner (2006) [12] Cardiovascular English 31(3) .not support the use of. to treat cardiovascular risk factors. +/− 0 +/−
Lee(2009) [13] Alzheimer English, Korean, Chinese 2(2) The evidence…is scarce and inconclusive. +/− 1[55] +
Hur(2010) [14] Hypertension English, Korean, Chinese, Japanese 5(0) show.significant. limited evidence … +/− 0
Lee(2011) [3] various conditions English, Korean, Chinese 57(9) …finding a strong positive potential…. +/− 22[26][31], [33], [38], [39], [41][45], [48][55] +/−
Vogler(1999) [15] various conditions English 16(0) ……efficacy.is not established beyond reasonable doubt…. +/− 30[26][55] +/−
Shergis(2012) [16] various conditions English 65(2) . promising results,….implications for several diseases…. +/− 28[26][49], [52][55] +/−

RCT: randomized controlled trial; SR: systematic review; +: positive; −: negative; +/−: unclear.