Correction to: A randomized, open-label, multicentre, comparative study of therapeutic efficacy, preventive potential and tolerability of BNO 1030 extract, containing Althea root, Chamomile flowers, horsetail herb, walnut leaves, yarrow herb, oak bark, dandelion herb in the treatment of acute non-bacterial tonsillitis in children aged 6 to 18 years | Clinical Phytoscience