Fig. 1From: Immune response to Propionibacterium acnes in patients with sarcoidosis – in vivo and in vitroTotal immunoglobulin levels in BAL fluid. Boxplots of total IgA (a) and total IgG (b) in BAL fluid of patients with sarcoidosis (grey bars) and healthy volunteers (white bars) (** p < 0.0001)Back to article page