Ozone impacts on loblolly pine (Pinus taeda L.) grown in a competitive environment.

One-year old, bare-root, loblolly pine (Pinus taeda L.) seedlings grown in an early successional plant community, were exposed to four ozone treatments, 12 h day(-1) (09:00-21:59 h CST), 7 day week(-1) in east-central Alabama for 2 years (1994-1995). Treatments included AA=ambient air (open plot; no chamber), CF = carbon-filtered air (approximately 0.

Hormone replacement therapy in the menopause: a pro opinion.

The preponderance of data support the benefits of HRT in estrogen-deprived and menopausal women to reduce the risks of osteoporosis and cardiovascular disease and to enhance quality of life and life expectancy. Controversies exist with regards to the risk-benefit ratio in women with a history of estrogen-dependent gynecologic tumors or breast cancer. Until these issues are resolved, physicians must carefully weigh, on an individual basis for each patient, the potential risks against the known benefits.

Endodermal sinus tumor and embryonal carcinoma of the ovary in a 53-year-old woman.

Background: Germ cell tumors, the most common ovarian malignancies in females under the age of 21, are rare in older women. We report an unusual case of a mixed embryonal carcinoma and endodermal sinus germ cell tumor in a perimenopausal patient and review the differential diagnosis and management of these malignancies with respect to age.

Case: A 53-year-old woman complaining of irregular menses and pelvic pain was found to have a large pelvic mass and a positive pregnancy test.