Table II.

Plasmids Used in This Study and Their Sources

Virus type	Vector	Source	Institution	Reference
HPV16	pBR322	E‐M de Villiers	DKFZ, Heidelberg	Seedorf et al.35
HPV31	pT713	AT Lorincz	Digene, MD	Lorincz et al.36
HPV45	pGEM4	E‐M de Villiers		Egawa et al.37
HPV52	pUC19	AT Lorincz		Shimoda et al.38