Table 2.

Score based on amplified fragments in the set of samples archived for 85 years

	No. of samples amplified on human tubulin-β gene
	Negative	Positive (65 bp)	Positive (149 bp)†	Total
No. of samples amplified on HPV16 L1 gene
Negative	0	3	0	3
Positive (69 bp)	2	2	0	4
Positive (134 bp)‡	0	10	2	12
Total	2	15	2	19

bp: base pairs

^†All samples named “149 bp” were also positive for both 65 bp and 149 bp amplicons

^‡ All samples named “134 bp” were also positive for both 69 bp and 134 bp amplicons