Linked from
The 19 pages that link to Mercury poisoning, each with the reason it gives.
Mercury(II) oxideRelated: Handling or heating HgO can expose people to hazardous mercury.
GalinstanRelated: Avoiding mercury exposure is a central reason Galinstan is used as a substitute.
MerbrominRelated: Concerns about mercury exposure contributed to restrictions on merbromin products.
Mercury sulfideRelated: Handling or processing HgS can create hazardous mercury exposure.