14th annual scientific, clinical and business meeting of the Society of Perinatal Obstetricians : January 24-29, 1994, Las Vegas, Nevada Vol. 170 No. 1, Part 2, [Supl.] 1994. St. Louis : Mosby-Year Book, 1994. s. 23, 264-446   [1, z toho volných 0, prezenčně 1]