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Noninvasive variceal pressure measurement was intially described by Mosimann in 1982,Bosch have further developed this technique. Palm er於195 1年首次報道靜脈內(nèi)測壓 ,1982年瑞士學(xué)者 Monismann利用呼吸壓力測定原理進行食琯曲張靜脈血琯外測壓。