@misc{indiciaed6e7f3461ca7, title = {PTA (factor XI) deficiency and prolonged bleeding time.}, author = {M Karaca and I M Nilsson}, year = {1972}, doi = {10.1111/j.0954-6820.1972.tb04798.x}, url = {https://pubmed.ncbi.nlm.nih.gov/5055262/}, note = {Source identifier: 5055262} }