Analyze the sentiment expressed in the tweet. Is it positive, negative, or neutral? Explain the sentiment in relation to the stock mentioned.
TWEET: "RT @iamritu: @VietHeartPA @purviparwani @DrDave01 @venkmurthy @Apple @EricTopol @mmamas1973 @DavidLBrownMD @onco_cardiology @rajdoc2005 @Ro…" STOCK: nan DATE: nan
Sentiment: (Provide sentiment here)
Explanation: The tweet sentiment is related to the stock mentioned, and it's important to interpret the context. The LSTM polarity score is nan and the TextBlob polarity score is nan.