Transplant

Both BL dramas take place in a medical environment and include criminal investigation.
They are based on a novel of the same writer and both are supposed to be sequels of Manner of Death.

Transplant is kinda a spin-off of Triage because Transplant's main caracters appeared as guest roles in Triage and they mostl likely are from the same creators.
Both series are BL dramas from the medical environment and there is an investigation of suspicious surgeries.

Transplant is a sequel of Manner of Death with the same main couple.
Both series include a (BL) romance but also a thrilling investigation that puts the main characters in danger.