Words similar to unclear

Example sentences for: unclear

How can you use “unclear” in a sentence? Here are some example sentences to help you improve your vocabulary:

24 cells and primary mouse hepatocytes, through activation of the Fas receptor in a FasL-independent manner [ 19 25 ] . Moreover, GCDCA was demonstrated to activate both initiator and effector caspases, and that the apoptotic response can be blocked by Crm A, a caspase 8 inhibitor [ 25 ] . The mechanism by which bile acids stimulate the activation of Fas receptor remains unclear.
Acidosis is a major cause of death in patients with malaria, although what causes acidosis is still unclear.
Therefore, it is unclear whether CCR5 is a marker of Th1 cells in RA synovium.
In summary, it is unclear how much each additional dollar of government saving will ultimately increase national saving.
It's obvious that many medical journals are losing relevance as vehicles for scientific information, but it's unclear what will save them.