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Measurement of the incoherent <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si1.gif" overflow="scroll"><mml:mi>γ</mml:mi><mml:mi>d</mml:mi><mml:mo>→</mml:mo><mml:mi>ϕ</mml:mi><mml:mi>p</mml:mi><mml:mi>n</mml:mi></mml:math> photoproduction near threshold