PRK (redirected from Photorefractive keratectomy)
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Related to Photorefractive keratectomy: LASIK
GOST 7.67 Latin three-letter geocode for North Korea. The code is used for transactions
to and from North Korean bank accounts
and for international shipping to North Korea. As with all GOST 7.67 codes, it is used primarily in Cyrillic alphabets.