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Lincoln sign

Lincoln sign refers to forceful popliteal artery pulsation secondary to aortic regurgitation; exaggerated when the patient sits with legs crossed; and deemed positive if the elevated foot bobs up and down with each systolic contraction.

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Louis Wolff

Louis Wolff (1898-1972) was an American cardiologist. Eponymously affiliated with the Wolff-Parkinson-White syndrome (WPW) described in 1930

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Phonetic alphabet

Probably the two most potentially useful skills I learnt in the army were ironing (a skill I try to avoid putting to use at any cost) and knowledge of the phonetic alphabet.