Public domain photos
The image shows a formalin/PFA-fixed paraffin-embedded section of a human body, stained with anti-pfa1 antibody [epr22828] and bovine serum albumin (BSA) and azide free ab24747.
![The image shows a formalin/PFA-fixed paraffin-embedded section of a human body, stained with anti-pfa1 antibody [epr22828] and bovine serum albumin (BSA) and azide free ab24747.](https://pd12m.s3.us-west-2.amazonaws.com/images/2b834b08-bdb3-5a50-b5db-9e1a65bac0d1.jpeg)
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