From: Hydrofluoric acid burns in the western Zhejiang Province of China: a 10-year epidemiological study
Hospital stay (days)
Cases
N
Percent (%)
<10
148
73.63
10–19
23
11.44
20–29
12
5.97
30–39
14
6.97
40–49
3
1.49
>50
1
0.50