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Figure 2 | BMC Research Notes

Figure 2

From: Utility of arsenic-treated bird skins for DNA extraction

Figure 2

Distribution of collection dates of successfully amplified samples. Only the maximum amplicon lengths are indicated. Black dots: foot pads, empty squares: skin samples. Some symbols may represent several samples from the same year with the same PCR success. The dashed line indicates the 1971 timeline after which the use of arsenic ceased.

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