Acknowledgements: This work has received funding from: the European Union's Horizon 2020 research and innovation programme under grant agreements No. 688303 (LUCA), No. 871124 (LASERLAB-EUROPE V), No. 101016087 (VASCOVID), No. 101017113 (TINYBRAINS), 101099093 (Prometeus), No. 101099291 (fastMOT), Fundació CELLEX Barcelona, Fundació Mir-Puig, Agencia Estatal de Investigación (PHOTOMETABO, LUX4MED/MEDLUX, PID2019-106481RB-C31/10.13039/501100011033, PID2023-151973OB-I00 PHOTOSHOCK, PID2023-147553OB-I00 SCOSWear), the ``Severo Ochoa'' Programme for Centres of Excellence in R\&D (CEX2019-000910-S), Generalitat de Catalunya (CERCA, AGAUR-2019-FI\_B-00968, AGAUR-2022-SGR-01457, RIS3CAT-001-P-001682 CECH, Secretaria d'Universitats i Recerca del Departament d'Empresa i Coneixement de la Generalitat de Catalunya, the European Social Fund, FEDER). We thank the subjects who generously participated in this study. Disclosure: The role of all the companies (HemoPhotonics S.L., Vermon SA, IMV Imaging) and their employees involved has been defined by the project objectives, tasks, and work packages and has been reviewed by the European Commission (European Union's Horizon 2020 research and innovation programme, LUCA project, grant agreement No. 688303). ICFO has equity ownership in the spin-off company HemoPhotonics S.L. and UMW is the CEO. TD and UMW are inventors of relevant patents. MB, DC, ADM and AT are co-founders of PIONIRS s.r.l., a spin-off company from Politecnico di Milano (Italy), and MB is the CEO of the company. Their involvement in the study primarily preceded the company's foundation. All potential financial conflicts of interest and research objectivity were monitored by ICFO's Knowledge \& Technology Transfer Department.

This repository contains the data sets of the article: P. Fernández Esteberena et al. (2024). Near-infrared diffuse optical characterization of human thyroid using ultrasound-guided hybrid time-domain and diffuse correlation spectroscopies. Biomedical Optics Express. https://doi.org/10.1364/BOE.538141