Medical implants
A known fact related to aliens is that they use implants. They are usually used for locating persons. The same way humans tag birds.
Uri Gal medical research team specialized in medical implants. These are advance devices that replace organs or partial body functions. These implants are used when the original biological part cannot be cured or replaced by a biological implant.
The head of the aliens team, at Uri's clinic, is Professor Bach - a super intelligent reptile alien that combines vast knowledge in medicine and technology to develop and test new medical implants. I succeeded to interview him several times about his work and personal life.