Correction to: J Inherit Metab Dis (2018).

https://doi.org/10.1007/s10545-018-0178-z

Due to a typesetting error the wrong figure 2 was used. The correct figure 2 is shown here:

Fig. 2
figure 1

Schematic information with individual life lines with porphyric attacks of all symptomatic cases, including information regarding prophylactic heme therapy. Subgroups were based on phenotypic characteristics: recurrent cases were defined as having more than four attacks in any year, or on prophylactic heme therapy; symptomatic cases, were defined as having experienced one or more confirmed acute porphyric attack; asymptomatic controls never experienced a proven acute porphyric attack. On the left there are 11 lines derived from patients with recurrent attacks, and on the right 24 lines derived from symptomatic cases. Each line starts at 15 years of age and ends at the end of the observation period or death. Each segment on the line represents one year. The red blocks represent one attack during that year. The green bars under the timelines represent years in which patients received prophylactic heme. A cross represents death. Abbreviations. LTF, lost to follow-up; HCC, hepatocellular carcinoma; LTx, liver transplant. *not included in study analysis

Fig. 2 Visualisation of attacks for symptomatic and recurrent AIP patients