Article History
Received: 21 August 2019
Accepted: 26 September 2019
First Online: 4 November 2019
Compliance with ethical guidelines
:
: G.L. Falk, T.J. D’Netto and S.C. Little declare that they have no competing interests.
: Prospective patient data were collated from a password-protected practice database and collated for publication. The database was approved by the institutional ethics committee (CH62/6/2011-092).