“…Viswanathan (1945) claimed improvement from intravenous injections of protein hydrolysate. Richardson and Suffern (1945) and Hoagland and Shank (1946) had no success with choline, 1.5 to 5.0 g. daily by mouth. Lenz (1944) had no success with insulin and glucose, and Gordon (1944) none with insulin, glucose, and vitamin C. Hoagland and Shank (1946) also had no success with intravenous liver extract.…”