Response to Dr. Kawada
Crossref DOI link: https://doi.org/10.1007/s00431-017-2870-7
Published Online: 2017-02-06
Published Print: 2017-04
Update policy: https://doi.org/10.1007/springer_crossmark_policy
Haataja, Paula http://orcid.org/0000-0001-9699-1547
License valid from 2017-02-06