Home-cage intake of saccharin and nicotine drinking water (ml water/day/mouse).

<p>Home-cage intake of saccharin and nicotine drinking water (ml water/day/mouse).</p

Cocaine intake data for rats allowed to self-administer cocaine during 1 hr (short access) or 6 hr (long access) sessions.

<p>Cocaine intake data for rats allowed to self-administer cocaine during 1 hr (short access) or 6 hr (long access) sessions.</p