Investigation of a non-invasive venous blood flow measurement device : Using thermal mass measurement principles. Proceedings of the 2019 Annual Meeting of the German Society of Biomedical Engineering, 5, 1:179-182, De Gruyter, 2019. [PUMA: mult sent ubs_10005 ubs_10007 ubs_20007 ubs_20011 ubs_30182 ubs_30186 ubs_40307 ubs_40347 unibibliografie]