- Russia likely used Novichok to send Alexei Navalny and Kremlin critics a message, experts say ABC News
- Donald Trump says US 'hasn't had any proof' of Navalny poisoning The Guardian
- Novichok: how are victims surviving poisoning? The Conversation UK
- For the Russian state, the poisoning of Alexei Navalny was simply business The Guardian
- Donald Trump says US has not seen evidence Alexei Navalny was poisoned by Russia ABC News
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