SURGEON ELIGIBILITY CRITERIA FOR OPEN STEP 0 ENROLLMENT:

\* Any surgeon performing gastrointestinal, genitourinary, or gynecologic cancer surgery within an NCORP site, including general surgeons, surgical specialists, urologists, and gynecologists. Surgeons do not need to be involved in research or have a Cancer Therapy Evaluation Program Identification (CTEP ID) to participate in this study

SURGICAL APP ELIGIBILITY CRITERIA FOR OPEN STEP 0 ENROLLMENT:

\* APPs providing postoperative care to patients operated by surgeons performing gastrointestinal, genitourinary, or gynecologic cancer surgery within an NCORP site, including general surgeons, surgical specialists, urologists, and gynecologists. Surgical APPs do not need to be involved in research or have a CTEP ID to participate in this study

SURGEON ELIGIBILITY CRITERIA FOR OPEN STEP 1 ENROLLMENT:

\* Must have completed the STOP-VTE Survey - Surgeon electronically (preferred) or on paper and have it transferred to Research Electronic Data Capture (REDCap) by the contact person(s)

SURGICAL APP ELIGIBILITY CRITERIA FOR OPEN STEP 1 ENROLLMENT:

\* Must have completed the STOP-VTE Survey - APP electronically (preferred) or on paper and have it transferred to REDCap by the contact person(s)

SITE ELIGIBILITY PART 1-SITE ENROLLMENT IN OPEN:

\* Have at least one eligible surgeon or surgical APP who completed the STOP-VTE Survey - Surgeon/APP

* N/A

• Gastrointestinal Neoplasms, Urogenital Neoplasms, Digestive System Neoplasms, Neoplasms by Site, Neoplasms, Digestive System Diseases, Gastrointestinal Diseases, Female Urogenital Diseases, Female Urogenital Diseases and Pregnancy Complications, Urogenital Diseases, Male Urogenital Diseases

• Wake Forest University Health Sciences