Origin of Plasma Protoporphyrin in Patients With Erythropoietic Protoporphyria
Abstract
Abstract To the Editor.— In their reply to our communication in the August 1980 Archives (116:863-864), Poh-Fitzpatrick and Mathews-Roth still insist that the studies of Piomelli et al1 were partly in vivo. To resolve this semantic discordance, we will present our concept of an in vivo biochemical experiment. We visualize (at least) the following two broad types of study: (1) Collect specimens from a live animal, make the animal undergo stress, and collect specimens at recorded...