What type of details about john gaddum can be gathered from the following bio? Bio: sir john henry gaddum -lrb- 31 march 1900 -- 30 june 1965 -rrb- was an english pharmacologist who discovered substance p , a neuropeptide in 1931 along with ulf von euler .
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- death place - birth name - honorific suffix - death date - birth date - name - image - birth place