[1] Boston Univ, Sch Med, Dept Med, Boston, MA 02118 USA
[2] Univ G dAnnunzio, Div Neonatol, Chieti, Italy
[3] Univ Cattolica Sacro Cuore, Dept Orthoped, Rome, Italy
[4] Univ G dAnnunzio, Sch Dent, Chieti, Italy
[5] Univ Roma Tor Vergata, Dept Dermatol, Rome, Italy
[6] Osped Pescara, Gynecol Div, Pescara, Italy
[7] Univ G dAnnunzio, Ortona Hosp, Chieti, Italy
[8] Univ Perugia, Orthopead Div, I-06100 Perugia, Italy
[9] Univ Cattolica Sacro Cuore, Dept Internal Med, I-00168 Rome, Italy
[10] Univ Aquila, Dept Hlth Sci, I-67100 Laquila, Italy
[11] Univ G dAnnunzio, Dept Expt & Clin Sci, Div Immunol, Chieti, Italy
[12] Tufts Univ, Sch Med, Tufts New England Med Ctr, Dept Pharmacol & Expt Therapeut Biochem & Interna, Boston, MA 02111 USA