The Literary Companion to Medicine by 
The Cambridge Companion to Literature and Psychoanalysis by 
In the UK, a woman named Deborah Alma has taken the idea of poetry as medicine very literally. She runs a store called the Poetry Pharmacy where people can make appointments with her and have her "prescribe" poems. She sometimes travels to festivals and other events in the ambulance pictured above, which her website calls "the world's first and only mobile poetic first aid service."
Poetic Medicine by 
Expressive Therapies by 
