@misc{indiciae7484d94fc52a, title = {The Leiden Thrombophilia Study (LETS).}, author = {F J van der Meer and T Koster and J P Vandenbroucke and E Briƫt and F R Rosendaal}, year = {1997}, url = {https://pubmed.ncbi.nlm.nih.gov/9198229/}, note = {Source identifier: 9198229} }