Sheraton Hotel, sidewalk opposite to Retiro Square.
From 8:00 to 12:00 each hour.
From 1:00 to 19:00 every half hour
Córdoba 2401 esq. Azcuénaga (Stop at the door of the pharmacy.)
from 8:00 hs to 12:00 hs each hour
From 13:00 hs to 19:00 hs each half hour
Av. Sarmiento 2750