fourty nine men seeking advice for erectile impotence , in whom the serum flow rate necessary to maintain an artificial erection ( mfr ) exceeded the upper limit of the normal range proposed by most authors ( 75 ml/mn ) , underwent different investigations ( including a study of their penile arteries , nocturnal penile tumescence monitoring ( npt ) and a papaverine test ) in order to ascertain the organic basis of their impotence , and to define the diagnostic criteria for `` '' venous incompetence '' '' .
C0242350
impotence
C0030350
papaverine