On the impact of calcified deposits within the rotator cuff tendons in shoulders of patients with shoulder pain and dysfunction. - Maier,M.; Stäbler,A.; Schmitz,C.; Lienemann,A.; Köhler,S.; Dürr,H.R.; Pfahler,M.; Refior,H.J. (ARch Orthop Trauma Surg, 2001)