Head noun: limitationPostmodifier: of study
| Same concepts | 
|---|
Broader concepts
| label | provenance | confidence | 
|---|---|---|
| small sample size | isap:505264349 | 0.401144 | 
| number of patient | isap:257101907 | 0.369970 | 
| sample size | isap:505264346 | 0.259182 | 
Narrower concepts
| label | provenance | confidence | 
|---|---|---|
| retrospective design | isap:18530617 | 0.563358 | 
| small cohort size | isap:188113480 | 0.530834 | 
| small sample size | isap:188113451 | 0.527725 | 
| lack of datum | isap:191177439 | 0.445881 | 
| retrospective nature | isap:18576786 | 0.434837 | 
| control group | isap:259678008 | 0.402200 | 
| study | isap:257738406 | 0.389583 | 
| small sample | isap:17770833 | 0.373417 | 
| group | isap:259678009 | 0.325042 | 
| sample size | isap:188113468 | 0.323536 | 
| therefore | isap:43648817 | 0.314620 | 
| number of patient | isap:17927786 | 0.305080 | 
| cross-sectional design | isap:18530618 | 0.299672 | 
| however | isap:243089381 | 0.266595 | 
| furthermore | isap:313359621 | 0.266480 | 
| nevertheless | isap:221234824 | 0.265255 | 
| fact | isap:189270592 | 0.250679 | 
| lack | isap:191177395 | 0.170930 | 
| outcome | isap:245650082 | 0.164241 | 
| relation | isap:180568022 | 0.136232 |