<prompt>  A 60 yr old female with HO 8 blood transfusion in 2 years. Her Hb- 60gL, TLC-5800, platelet-3.4 lakhs, MCV 60, RBC-2.1 lakhsmm3. He is having hypochromic microcytic anemia. Which investigation is not needed -Evaluation for pulmonary hemosiderosisUrinary hemosiderinBone marrow examinationG I endoscopy 