1. L. A. Bolkhovitinova and M. N. Pavlova, Keloid Scars [in Russian], Moscow (1977).
2. V. V. Vinogradov, in: Connective Tissue in Health and Disease [in Russian], Novosibirsk (1968), p. 30.
3. E. G. Kolokol'chikova and A. A. Pal'tsyn, Byull. Éksp. Biol. Med.,88, 617 (1979).
4. A. A. Pal'tsyn and E. G. Kolokol'chikova, Byull. Éksp. Biol. Med., No. 11, 626 (1968).
5. A. A. Pal'tsyn and E. G. Kolokol'chikova, Arkh. Anat., No. 9, 97 (1979).