Use of low-frequency contact ultrasonic debridement with and without polyhexamethylene biguanide in hard-to-heal leg ulcers: an RCT protocol.
Vallejo A, Wallis M, McMillan D, Horton E. Use of low-frequency contact ultrasonic debridement with and without polyhexamethylene biguanide in hard-to-heal leg ulcers: an RCT protocol. J Wound Care. 2021 May 02; 30(5):372-379.