Table:
Genes	Expression levels (arbitrary units)
C/C (n = 7)	HF/C (n = 7)
let-7c	118.10 ± 9.71	60.31 ± 6.80**
let-7a	278.62 ± 15.64	107.64 ± 11.82*
let-7b	107.10 ± 5.45	45.82 ± 4.28**
let-7d	164.68 ± 15.50	80.29 ± 8.10**

Parse the illustration content behind with markdown code: | Genes | <COLSPAN=2> Expression levels (arbitrary units) | 
 | --- | --- | --- | 
 |  | C/C (n = 7) | HF/C (n = 7) | 
 | let-7c | 118.10 ± 9.71 | 60.31 ± 6.80** | 
 | let-7a | 278.62 ± 15.64 | 107.64 ± 11.82* | 
 | let-7b | 107.10 ± 5.45 | 45.82 ±

4.28** | 
 | let-7d | 164.68 ± 15.50 | 80.29 ± 8.10** |