1. B. DELALOYE, Introduction a la Scintigraphie Clinique, Masson, Paris, 1966, p. 65.
2. J. L. QINN, Scintillation Scanning in Clinical Medicine, Saunders, Philadelphia, 1964, p. 178.
3. G. V. TAPLIN, O. M. MERDITH, Jr., M. J. Lab. Clin. Med., 45 (1955) 665.
4. J. LIEBESTER, O. AANDRYSEK, Nature, 184 (1959) 913.
5. E. HALLABA, M. RAEIH, Int. J. Appl. Radiat. Isotopes, 18 (1967) 533.