Funding for this research was provided by:
Text and Data Mining valid from 2019-08-17
Received: 26 April 2018
Accepted: 17 July 2019
First Online: 17 August 2019
Ethics approval and consent to participate
: The study was approved by the autonomic ethics committee for clinical trials of Andalucía (Hospital Virgen del Rocio 07/2009) and by all of the participating sites. All the patients signed the informed consent form.
: Not applicable.
: MRS and JLL are employees of Pfizer S.L.U. MAR has received Research Funding/Contracted Research from Pfizer. All remaining authors have declared no conflicts of interest.