Receiver-operating characteristic (ROC) curves comparing sensitivity and specificity of hArg and NT-proBNP levels in predicting adverse cardiac events in general.

<p>AUC, area under the curve.</p

Receiver-operating characteristic (ROC) curves comparing sensitivity and specificity of hArg and NT-proBNP levels in predicting death due to progressive heart failure or occurrence of overt heart failure.

<p>AUC, area under the curve.</p

Characteristics of patients with and without adverse cardiac events^#.

<p>Characteristics of patients with and without adverse cardiac events<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0184333#t001fn002" target="_blank">^#</a>.</p

Boxplots demonstrating homoarginine levels in patients with different adverse cardiac events.

<p>SVT, supraventricular tachycardia; AF, atrial fibrillation.</p

Relation of hArg and NT-proBNP with different variables^*.

<p>Relation of hArg and NT-proBNP with different variables^{<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0184333#t002fn002" target="_blank">*</a>}.</p

Boxplots displaying homoarginine levels in healthy controls and patients with various types of complex heart defects.

<p>CRHD, corrected congenital right heart disease; SRV, systemic right ventricle; FONT, Fontan palliation; EIS, Eisenmenger physiology or unrepaired cyanotic heart defect.</p