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who
「何方」 has other readings with different meanings.
which way; which direction; where
失礼しつれいですがどなたですか。
Excuse me, but who are you?
どなたかお医者いしゃさんはいませんか。
Is there a doctor here?
どなたでも参加さんかできますのでお気軽きがるにどうぞ。
Anyone can participate, so please feel free.