The Molab https://molab.es/ is the Mathematical Oncology Laboratory associated to the Spanish university Universidad de Castilla La Mancha, see also the sponsors from the web. See the labels Research and Projects.
On the other hand in recent days I heard on the Spanish radio RTVE a talk with María Soengas, see this Wikipedia, the podcast [1] refers details of her methodology*. While the mathematics should be an important tool in the study of her models I don't know what are the papers of her research group with more mathematical content.
References:
[1] Optimismo, the podcast in Spanish language from the radio program Historias de la gente, Radio Televisión Española (RTVE) (28/01/2023) https://www.rtve.es/play/audios/historias-de-la-gente/historias-gente-optimismo/6788704/