1. Aldwin, C. M., Clark, G. A., Hall, N., Levenson, M. R., and Bosse’, R., 1988, Immune regulation and psychological symptoms, Gerontologist. 28: 155A (abstract).
2. Allen, L. H., 1986, Maternal nutrition and fetal outcome, in: Human Growth: A Multidisciplinary Review ( A. Demirjian, ed.), Tayler and Francis, London, pp. 265–272.
3. Andreasen, E., and Christensen, S., 1949, Rate of mitotic activity in lymphoid organs of rat, Anat. Rec. 103: 401–412.
4. Bach, J. F., LeBrigand, H., and Barois, M., 1972, Evidence for a serum thymic factor produced by the human thymus, Lancet 2: 1056–1058.
5. Barson, A. J., 1974, Developmental pathology of the spine, in: Scientific Foundations of Pediatrics ( J. A. Davis and J. Dobbing, eds.), W. B. Saunders, Philadelphia, pp. 759–785.