[1] Minimally Invasive Surgery Department,
[2] Legacy Portland Hospitals,undefined
[3] and Oregon Health Sciences University,undefined
[4] Portland,undefined
[5] OR,undefined
[6] USA,undefined
[7] Legacy Portland Hospitals,undefined
[8] Portland,undefined
[9] OR,undefined
[10] USA,undefined
[11] Minimally Invasive Surgery Department,undefined
[12] Legacy Portland Hospitals,undefined
[13] 501 North Graham Street,undefined
[14] Suite 120,undefined
[15] and Department of Surgery,undefined
[16] Oregon Health Sciences University,undefined
[17] Portland,undefined
[18] OR,undefined
[19] 97227,undefined
[20] USA,undefined