This research has been funded by the Spanish Ministry of Science and Innovation under project MINECO-TIN2017-84804-R;
PID2020-112726RB-I00 and the State Research Agency (AEI;
Spain) under grant agreement No RED2018-102312-T (IA-Biomed). Moreover;
this work was also partly supported by IITP grant funded by the Korean government (MSIT) (No. 2020-0-01361;
AI Graduate School Program (Yonsei University));