There has been increasing interest in measuring the productive performance of health care
services, since the mid-1980s. This paper reviews this literature and, in particular, the …

Materials and Methods Between 1946 and 1987, 647 patients with periampul-lary tumors
were diagnosed at the University of Chicago Medical Center. These included 549 tumors …

Ductal carcinoma in situ (DCIS) is becoming increasingly common, accounting for 25%–30%
of newly diagnosed cases of breast cancer (1). The comedo type represents about 40% of …

… Paine TM, Soule HD, Pauley RJ, Dawson PJ: Characterization of epithelial phenotypes
in mortal and immortal human breast cells. Int J Cancer 50: 463–473, 1992 14. Aapro MS, …

A human cell line (MCF10A) originated from spontaneous immortalization of breast epithelial
cells obtained from a patient with fibrocystic disease. MCF10A cells do not survive in vivo in …

Background Progression of proliferative breast disease has been associated with increased
risk for development of invasive carcinoma. Cell lines have been developed to facilitate the …

The hypothesis that financial development promotes economic growth is largely supported
by empirical studies. This hypothesis is tested for 13 Central and East European Countries (…

This paper quantifies the contribution of agricultural exports to economic growth in
developing countries. We estimate the relationship between GDP and agricultural and non‐…

This article examines the contribution of agricultural exports to economic growth in less
developed countries (LDCs). A sources‐of‐growth equation is developed from a dual economy …

Among 1001 patients with carcinoma of the pancreas, 23 of 912 patients with exocrine
carcinomas, 10 of 46 with ampullary carcinomas, and 21 of 43 with malignant islet cell tumors …