The editors are publishing this note to alert readers to a concern about this article (1). In the actin row of Fig. 3B, there is a missing splice line between samples 12 and 35, and the sets of actin blots in samples 12 and 35 appear to be duplicates.

1.
Van Den Broeck
A
,
Brambilla
E
,
Moro-Sibilot
D
,
Lantuejoul
S
,
Brambilla
C
,
Eymin
B
, et al
Loss of histone H4K20 trimethylation occurs in preneoplasia and influences prognosis of non-small cell lung cancer
.
Clin Cancer Res
2008
;
14
:
7237
45
.