Fig. 2From: Prevalence of recurrent aphthous stomatitis, oral submucosal fibrosis and oral leukoplakia in doctor/nurse and police officer populationThe prevalence rates of OSF in the non-doctor/nurse and non-police officer group, the police officer group and the doctor/nurse group. * indicates statistically significant differences of overall prevalence with P < 0.05 between the male doctor/nurse group and the male non-doctor/nurse and non-police officer group. # indicates statistically significant differences of overall prevalence with P < 0.05 between the male police officer group and the male non-doctor/nurse and non-police officer groupBack to article page