Zheng 2017.

Methods	Randomized parallel controlled trial.
Participants	Patients with gynecologic malignancy diagnosis undergoing surgery.
Interventions	Graduated compression stocking and/or intermittent pneumatic compression and/or LMWH.
Outcomes	Ultrasound diagnosis of VTE.
Notes	Duration of LMWH duration not specified in protocol. Date of trial registration 30 October 2015. Each of 4 arms of trial anticipate 250 patients enrolled. Study contact zhangzhenyu@coga.org.cn, telephone +86 13801237287

LMWH: low molecular weight heparin; VTE: venous thromboembolism.