The synthesis and tissue-localizing ability of [14C]- and [3H]hematoporphyrin derivative (HPD) in mice have been described. Tissue levels and distributions were the same for both radioactive compounds, indicating that in vivo tritium exchange did not occur with [3H]HPD. The amount of [14C]HPD or [3H]HPD which localized in the transplanted tumor tissue of mice at various times following i.p. inj...

this study investigates the effects of  macroeconomic variables and their role in development of foreign exchange market. the foreign exchange market is the mechanism by which a person of firm transfers purchasing power form one country to another, obtains or provides credit for international trade transactions, and minimizes exposure to foreign exchange risk. the foreign exchange transaction i...