Sueda, Shozo
Kohno, Hiroaki
Article History
Received: 23 July 2019
Accepted: 24 September 2019
First Online: 22 October 2019
Compliance with ethical standards
:
: The authors declare that they have no conflicts of interest.
: The study protocol complied with the Declaration of Helsinki.
: Written informed consent about performing the ACh spasm provocation tests was obtained from all patients.