Mr. Market's non-response notwithstanding, Johnson & Johnson (NYSE:JNJ) turned in a great second quarter. But with any company as big as J&J, not every investor question can be answered, and sometimes the leftover question marks are pretty big.

Below are three crucial questions Motley Fool health care analysts Michael Douglass and David Williamson think J&J still needs to answer.

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David Williamson owns shares of Johnson & Johnson. Michael Douglass has no position in any stocks mentioned. The Motley Fool recommends Johnson & Johnson. The Motley Fool owns shares of Johnson & Johnson. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.