This question was closed without grading. Reason: Answer found elsewhere
Jan 2, 2017 11:50
7 yrs ago
English term
melanin precluded evaluation
English to Croatian
Medical
Medical: Health Care
clinical trial
For 55 (6%) study patients melanin precluded evaluation of PD-L1 expression status and PD-L1 expression status was unknown for 47 (5%) patients due to consent withdrawal or missing samples.
Discussion
http://www.thefreedictionary.com/preclude