Rhenium. 186Re is the isotope of Rhenium, it is used in the treatment of inflammatory

Lutetium. The radioactive isotope 177Lu is used in hospitals to treat neuroendocrine tumors. Neuroendocrine cells

Ytterbium. 169Yb is the isotope Ytterbium, it is used in medical and industrial radiography, it

Erbium. 169Er is the isotope Erbium, used in the treatment of rheumatoid disease.

Holmium. 166Ho is the holmium isotope, it is developed for therapeutic applications in the cure