Szechuan Dipping facts

While investigating facts about Szechuan Dipping Sauce and Szechuan Dipping Sauce Recipe, I found out little known, but curios details like:

McDonalds szechuan dipping sauce wasn't szechuan at all, as the szechuan peppercorn was banned in the US at the time of the original promotion.

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A photo of McDonalds 1998 Szechuan Dipping Sauce is being auctioned for more than $56,000.

What level of evidence is a systematic review?

In my opinion, it is useful to put together a list of the most interesting details from trusted sources that I've come across answering what is systematic review and meta analysis. Here are 2 of the best facts about Szechuan Dipping Sauce Mcdonalds and Szechuan Dipping Sauce Rick And Morty I managed to collect.

what is a systematic literature review?