For those like me that know little about the placebo effect, there's a nice episode[1] of the On Being by Krista Tippett podcast where she interviewed Erik Vance on the subject. His book is also very interesting for the uninitiated[2].

[1] https://onbeing.org/programs/erik-vance-the-drugs-inside-you...

[2] https://www.goodreads.com/book/show/32944584-suggestible-you