1. Non-invasive cancer detection using volatile biomarkers: Is urine superior to breath?
   Roland Becker, 2020, Medical Hypotheses CrossRef
2. Applications of headspace solid-phase microextraction in human biological matrix analysis
   Xiaoyue Ji, 2022, Reviews in Analytical Chemistry CrossRef
3. The untargeted urine volatilome for biomedical applications: methodology and volatilome database
   Maria Llambrich et al, 2022, Biological Procedures Online CrossRef