Donald Margouleff has joined the staff at Daxor (New York) as the director of nuclear medicine. Margouleff is board certified in both Nuclear Medicine and Internal Medicine, is a professor of clinical medicine at the New York University School of Medicine and is Chief Emeritus of the Division of Nuclear Medicine of the North Shore University Hospital (Manhasset, New York). Daxor makes the BVA-100, a semi-automated Blood Volume Analyzer. Idant Laboratories, Daxor’s subsidiary, started the first personal frozen blood storage programs and one of the first frozen semen storage centers, the company said.

Susan Winckler, RPh, has been appointed as acting chief of staff for the FDA . She replaces Patrick Ronan who resigned last week after several years of service at the FDA. Winckler joined the FDA in September as the director of policy communications, in the Office of Policy and Planning within the Office of the Commissioner. Prior to joining the agency, Susan most recently served as the vice president for policy and communications and staff counsel for the American Pharmacists Association, the national professional society of pharmacists. She will begin her new role in early January 2007.

• Langer (Deer Park, New York) reported the resignation of Sara Cormack as vice president and chief financial officer, effective immediately. Cormack resigned for personal reasons but agreed to stay with the company through Jan. 5 for a transition period. The company has retained CMF Associates, of Berwyn, PA to assist in its financial operations while it conducts a search for a permanent CFO. Langer has also retained Heidrick & Struggles to assist the company in identifying a permanent CFO. Langer, together with its wholly owned subsidiary Silipos, makes medical products for the orthopedic, orthotic and prosthetic markets.