Bisphosphonates pamidronate and zoledronic acid stimulate osteoprotegerin production by primary human osteoblasts. - Viereck,V.; Emons,G.; Lauck,V.; Frosch,K.H.; Blaschke,S.; Grundker,C.; Hofbauer,L.C. (Biochem Biophys Res Commun, 2002)