The spike protein introduces clotting even without entering cells.
Experimental evidence in vitro not in vivo.
OTOH, test tubes have confounding factors which are much more easily allowed for.
I see the relationship with SARS-CoV-2 spike protein S1 and the formation of microclots, but the relation to the mRNA vaccines and iron is not clear to me - despite these two footnotes:
↵Pretorius, E., Vermeulen, N., Bester, J. & Lipinski, B. 2013a. Novel use of scanning electron microscopy for detection of iron-induced morphological changes in human blood. Microsc Res Tech, 76, 268–71.Google Scholar↵Pretorius, E., Vermeulen, N., Bester, J., Lipinski, B. & Kell, D. B. 2013b. A novel method for assessing the role of iron and its functional chelation in fibrin fibril formation: the use of scanning electron microscopy. Toxicol Mech Methods, 23, 352–9.CrossRefPubMedGoogle Scholar