Evidence for the Presence of Neutralizing Antibodies Against Human Papillomavirus Type 6 in Infants Born to Mothers with Condyloma Acuminata - Kawana, Kei; Yasugi, Toshiharu; Yoshikawa, Hiroyuki; Kawana, Yukiko; Matsumoto, Koji; Nakagawa, Shunsuke; Onda, Takashi; Kikuchi, Akihiko; Fujii, Tomoyuki; Kanda, Tadahito; Taketani, Yuji (American Journal of Perinatology, 2003)