[Quantitative evaluation of latent gastrointestinal hemorrhage in patients with iron deficiency anemia (preliminary report)].

Radiologic investigation of concealed gastro-intestinal hemorrhage with 51Cr was conducted for its detection and quantitative estimation in 102 patients with iron-deficiency anemia (IDA), loss of blood from the digestive tract was detected in 52 of them. A definite relationship was noted between the volume of hemorrhage and the disease responsible for the development of IDA. Moderate hemorrhage from 2.