Hi Mike, please excuse our delay, but we've finally found this.
"In 1983 the British Stomach Cancer Group told 411 prospective recipients of a new chemotherapy treatment that nausea and hair loss were possible side effects. Over 30% suffered hair loss and 56% reported vomiting before the treatment began. All they had had was a placebo."
https://mondediplo.com/2019/04/09placebos
"In 1983 the British Stomach Cancer Group told 411 prospective recipients of a new chemotherapy treatment that nausea and hair loss were possible side effects. Over 30% suffered hair loss and 56% reported vomiting before the treatment began. All they had had was a placebo."
https://mondediplo.com/2019/04/09placebos