To get to the department we suggest you get off at Genova Brignole Train Station.
In front of the station there is a bus stop. Those for the department are 16, 17 or 45.
If you take 16 or 17 get off at the stop
Europa 1 / Ospedale San Martino
From here you have to go up (there are stairs and a road) to Via Padre Sameria (on the opposite side from the hospital).
Here a map for you MAP 1
Once in via Sameria there is a door with the logo of the University of Genoa and a walkway leading directly to the department.
If you take 45 you have to get off at
San Martino 2 / PAPIGLIANO
Here a map for you MAP 2