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Constructive suggestions welcome. · · · Peter (Southwood) ^(talk): 17:56, 4 February 2018 (UTC)[reply]

I check pages listed in Category:Pages with incorrect ref formatting to try to fix reference errors. One of the things I do is look for content for orphaned references in wikilinked articles. I have found content for some of History of scuba diving's orphans, the problem is that I found more than one version. I can't determine which (if any) is correct for this article, so I am asking for a sentient editor to look it over and copy the correct ref content into this article.

Reference named "Butler":

• From Dive computer: The U.S. Navy Decompression Computer Article by CAPT. Frank K. Butler, M.D. Director of Biomedical Research Naval Special Warfare Command
• From Oxygen toxicity: Butler, Frank K; White, E; Twa, M (1999). "Hyperoxic myopia in a closed-circuit mixed-gas scuba diver". Undersea and Hyperbaric Medicine. 26 (1): 41–5. PMID 10353183. Retrieved 29 April 2009.

I apologize if any of the above are effectively identical; I am just a simple computer program, so I can't determine whether minor differences are significant or not. AnomieBOT⚡ 17:27, 18 June 2018 (UTC)[reply]