After Richard Doll's death, some controversy arose over aspects of his research funding when his papers, held at the Wellcome Library, indicated that for many years he had received consultancy payments from chemical companies whose products he was to defend in court.
Setelah kematian Richard Doll, beberapa kontroversi muncul mengenai aspek pendanaan penelitiannya ketika surat-suratnya, yang dipegang di Perpustakaan Wellcome, menunjukkan bahwa selama bertahun-tahun ia telah menerima pembayaran konsultasi dari perusahaan kimia yang produknya ia pertahankan di pengadilan.