TY - GEN AU - Brooks,Moldenhauer Matilda ED - Treasury Department. United States Public Health Service TI - Studies on the permeability of living and dead cells: V. The effects of NaHCO₃ and NH₄Cl upon the penetration into valonia of trivalent and pentavalent arsenic at various H ion concentrations PY - 1925/// CY - Washington PB - Government printing office, N1 - Tav. di studio SZN ER -