03.29.2021 55 Chemicals From Unknown Origin Discovered in Pregnant Women AuthorResearch paper: https://pubs.acs.org/doi/10.1021/acs.est.0c05984 Scientists Detect 55 Chemicals Never Before Reported in People – 42 “Mystery Chemicals” Whose Sources Are Unknown https://particleandfibretoxicology.biomedcentral.com/articles/10.1186/s12989-020-00385-9 Hashem Al-Ghaili.