A new spin on acquired von Willebrand factor deficiency during continuous-flow left ventricular assist device support

33. Tsai HM, Sussman II, Ginsburg D, Lankhof H, Sixma JJ, Nagel RL. Proteolytic cleavage of recombinant type 2A von Willebrand factor mutants R834W and R834Q: inhibition by doxycycline and by monoclonal antibody VP-1. Blood. 1997;89:1954-62. 34. Kircik LH. Doxycycline and minocycline for the management of acne: a review of efficacy and safety with emphasis on clinical implications. J Drugs Dermatol. 2010;9:1407-11.