Published in Am J Obstet Gynecol on May 15, 1977
The juvenile parturient. J Natl Med Assoc (1980) 1.09
Adolescent smoking, weight changes, and binge-purge behavior: associations with secondary amenorrhea. Am J Public Health (1992) 0.81
Teenage pregnancy. Can Fam Physician (1984) 0.75
Observations related to chronologic and gynecologic age in pregnant adolescents. Yale J Biol Med (1985) 0.75
Accuracy of data in abstracts of published research articles. JAMA (1999) 6.42
Why are African Americans under-represented in medical research studies? Impediments to participation. Ethn Health (1997) 4.63
Knowledge of the Tuskegee study and its impact on the willingness to participate in medical research studies. J Natl Med Assoc (2000) 3.82
Pesticides and other agricultural risk factors for non-Hodgkin's lymphoma among men in Iowa and Minnesota. Cancer Res (1992) 2.92
Low dose long-term corticosteroid therapy in rheumatoid arthritis: an analysis of serious adverse events. Am J Med (1994) 2.89
Factors that influence African-Americans' willingness to participate in medical research studies. Cancer (2001) 2.86
Randomized, double-masked comparison of oxytocin dosage in induction and augmentation of labor. Obstet Gynecol (1999) 2.28
Proportionate mortality study of golf course superintendents. Am J Ind Med (1996) 2.15
Pesticide exposures and other agricultural risk factors for leukemia among men in Iowa and Minnesota. Cancer Res (1990) 2.03
A comparison of meta-analytic results using literature vs individual patient data. Paternal cell immunization for recurrent miscarriage. JAMA (1995) 2.02
Determinants of survival in idiopathic pulmonary fibrosis. Am J Respir Crit Care Med (1994) 2.01
Integrative assessment of multiple pesticides as risk factors for non-Hodgkin's lymphoma among men. Occup Environ Med (2003) 1.70
The role of endotoxin in grain dust-induced lung disease. Am J Respir Crit Care Med (1995) 1.64
Familial cancers associated with subtypes of leukemia and non-Hodgkin's lymphoma. Leuk Res (1991) 1.54
Changing patterns of red blood cell transfusion in very low birth weight infants. J Pediatr (1996) 1.49
Determinants of longitudinal changes in spirometric function among swine confinement operators and farmers. Am J Respir Crit Care Med (1995) 1.48
The clinical utility and reliability of asbestos bodies in bronchoalveolar fluid. Am Rev Respir Dis (1991) 1.47
Measurement of red cell survival using biotin-labeled red cells: validation against 51Cr-labeled red cells. Transfusion (1999) 1.46
Ischemic heart disease mortality in Iowa farmers. The influence of life-style. JAMA (1982) 1.44
Smoking and risk of non-Hodgkin's lymphoma and multiple myeloma. Cancer Causes Control (1992) 1.35
Indoor environmental quality in six commercial office buildings in the midwest United States. Appl Occup Environ Hyg (2001) 1.30
Evaluation of risks for non-Hodgkin's lymphoma by occupation and industry exposures from a case-control study. Am J Ind Med (1993) 1.29
Determinants of progression in idiopathic pulmonary fibrosis. Am J Respir Crit Care Med (1994) 1.27
Airway injury in swine confinement workers. Ann Intern Med (1992) 1.26
Longitudinal evaluation of dose-response relationships for environmental exposures and pulmonary function in swine production workers. Am J Ind Med (1996) 1.26
A comparison of national infection and immunization estimates for measles and rubella. Am J Public Health (1978) 1.24
Increasing methotrexate effect with increasing dose in the treatment of resistant rheumatoid arthritis. J Rheumatol (1989) 1.23
Cancer mortality among Iowa farmers: recent results, time trends, and lifestyle factors (United States). Cancer Causes Control (1998) 1.22
Measurement of circulating red cell volume using biotin-labeled red cells: validation against 51Cr-labeled red cells. Transfusion (1999) 1.21
Cancer mortality in Iowa farmers, 1971-78. J Natl Cancer Inst (1981) 1.17
Circulating red cell volume and red cell survival can be accurately determined in sheep using the [14C]cyanate label. Pediatr Res (1997) 1.16
AS-1 red cells for neonatal transfusions: a randomized trial assessing donor exposure and safety. Transfusion (1996) 1.15
Agricultural use of organophosphate pesticides and the risk of non-Hodgkin's lymphoma among male farmers (United States). Cancer Causes Control (2001) 1.14
Leukemia and farm practices in Iowa. Am J Epidemiol (1982) 1.10
Cancer incidence in humans: relationship to plasma lipids and relative weight. J Natl Cancer Inst (1982) 1.09
Work-related injuries among Iowa farm operators: an analysis of the Iowa Farm Family Health and Hazard Surveillance Project. Am J Ind Med (1998) 1.09
Risk factors for agricultural injury: a case-control analysis of Iowa farmers in the Agricultural Health Study. J Agric Saf Health (2003) 1.05
Risk factors for back pain among male farmers: analysis of Iowa Farm Family Health and Hazard Surveillance Study. Am J Ind Med (2001) 1.01
Pesticide exposures and multiple myeloma in Iowa men. Cancer Causes Control (1993) 1.00
Epidemiology of unintentional adult injury in a rural population. J Trauma (2001) 0.99
Adverse experience with methotrexate during 176 weeks of a longterm prospective trial in patients with rheumatoid arthritis. J Rheumatol (1990) 0.98
Adaptive responses during anemia and its correction in lambs. J Appl Physiol (1985) (2000) 0.97
Field evaluation of endotoxin air sampling assay methods. Am Ind Hyg Assoc J (1997) 0.96
Feasibility and safety of AS-3 red blood cells for neonatal transfusions. J Pediatr (2000) 0.96
Histologic chorioamnionitis, microbial infection, and prematurity. Obstet Gynecol (1990) 0.96
Liver transplant after massive spontaneous hepatic rupture in pregnancy complicated by preeclampsia. Obstet Gynecol (1995) 0.96
Alcohol consumption and risk of leukemia, non-Hodgkin's lymphoma, and multiple myeloma. Leuk Res (1992) 0.95
Risk of repetition of a severe perineal laceration. Obstet Gynecol (1999) 0.95
Selected cancer mortality and farm practices in Iowa. Am J Epidemiol (1983) 0.94
Asbestos-induced pleural fibrosis and impaired lung function. Am Rev Respir Dis (1990) 0.93
Risk factors for work-related injury among male farmers in Iowa: a prospective cohort study. J Occup Environ Med (2001) 0.92
A controlled study of ethanol in threatened premature labor. Am J Obstet Gynecol (1972) 0.91
Effects of capitation payment for pharmacy services on pharmacist-dispensing and physician-prescribing behavior: II. Therapeutic category analysis, over-the-counter drug usage, and drug interactions. Drug Intell Clin Pharm (1981) 0.91
Effects of capitation payment for pharmacy services on pharmacist-dispensing and physician-prescribing behavior: I. Prescription quantity and dose analysis. Drug Intell Clin Pharm (1981) 0.91
A population based study of reporting patterns and characteristics of men who abuse their female partners. Inj Prev (2005) 0.90
Capitation payment for pharmacy services: impact on generic substitution. Med Care (1980) 0.90
Neonatal laboratory blood sampling: comparison of results from arterial catheters with those from an automated capillary device. Neonatal Netw (2000) 0.90
Schistosoma mansoni: vaccination of mice with highly x-irradiated cercariae. Exp Parasitol (1981) 0.89
Preventing respiratory disease in swine confinement workers: intervention through applied epidemiology, education, and consultation. Am J Ind Med (1990) 0.89
Effectiveness of a journal intervention to improve abstract quality. JAMA (2000) 0.88
The influence of isometric exercise and passive stretch on hip joint motion. Phys Ther (1977) 0.87
Preinduction cervical ripening with prostaglandin E2 intracervical gel. Obstet Gynecol (1986) 0.87
1983 occupational injury hospital admissions in Iowa: a comparison of the agricultural and non-agricultural sectors. Am J Ind Med (1990) 0.86
Clinical relevance of cellular mediators of inflammation in workers exposed to asbestos. Am Rev Respir Dis (1993) 0.85
Interleukin 1 release by human alveolar macrophages and blood monocytes. Am J Physiol (1989) 0.85
Tractor overturn concerns in Iowa: perspectives from the Keokuk county rural health study. J Agric Saf Health (2006) 0.85
Hair dye use and multiple myeloma in white men. Am J Public Health (1992) 0.84
Rural population survey of behavioral and demographic risk factors for loaded firearms. Inj Prev (2001) 0.84
Postvaccine era measles epidemiology. JAMA (1979) 0.84
Comments on occupational and environmental factors in the origin of non-Hodgkin's lymphoma. Cancer Res (1992) 0.83
Respiratory symptoms and pulmonary function in welders of mild steel: a cross-sectional study. Am J Ind Med (1983) 0.83
Relationships of bovine leukemia virus prevalence in dairy herds and density of dairy cattle to human lymphocytic leukemia. Am J Vet Res (1987) 0.83
The prevalence of depressive symptoms and risk factors among Iowa and Colorado farmers. Am J Ind Med (2000) 0.83
Monoamniotic twins: a retrospective controlled study. Obstet Gynecol (1991) 0.82
Risk factors for injury in rural Iowa: round one of the Keokuk County Rural Health Study. Am J Prev Med (2001) 0.82
Effect of chronic erythropoietin administration on plasma iron in newborn lambs. Biol Neonate (1996) 0.82
Epidemiologic assessment of laboratory animal allergy among university employees. Am J Ind Med (1996) 0.81
Effect of oral contraceptive pills on the level of creatine phosphokinase with regard to carrier detection in Duchenne muscular dystrophy. Clin Chim Acta (1974) 0.81
The relationship of unwed status to infant mortality. Obstet Gynecol (1990) 0.81
Smoking and risk of leukemia. Am J Epidemiol (1992) 0.81
Nonfatal cervical spine injuries in interscholastic football. JAMA (1976) 0.81
Correspondence re: K. P. Cantor et al., pesticides and other agricultural risk factors for non-Hodgkin's lymphoma among men in Iowa and Minnesota, Cancer Res., 52: 2447-2455, 1992. Cancer Res (1993) 0.81
Amniocentesis in the identification of inapparent infection in preterm patients with premature rupture of the membranes. J Reprod Med (1984) 0.80
Adrenergic mechanisms in infection. III. alpha-and beta-receptor blocking agents in treatment. Am J Clin Nutr (1977) 0.80
The effect of ten years of regionalized perinatal health care in Iowa, U.S.A. Eur J Obstet Gynecol Reprod Biol (1986) 0.80
Injury mortality among Iowa farmers, 1980-1988: comparison of PMR and SMR approaches. Am J Epidemiol (1995) 0.80
Identification of risk factors for non-fatal child injury in a rural area: Keokuk County Rural Health Study. Inj Prev (2003) 0.80
Mortality in Iowa farmers and farm laborers, 1971-1978. J Occup Med (1982) 0.80
Randomized trial assessing the feasibility and safety of biologic parents as RBC donors for their preterm infants. Transfusion (2000) 0.80
Interval evaluation of the cervix for predicting pregnancy outcome and diagnosing cervical incompetence. J Reprod Med (1993) 0.79
Patient care telephone calls received in family practice offices. J Fam Pract (1982) 0.79
Dietary protein in pregnancy: effect on anthropometric indices of the newborn infant. Am J Obstet Gynecol (1983) 0.78
Dietary protein and human pregnancy performance. J Reprod Med (1979) 0.78
Vegetable oil sprinkling as a dust reduction method in swine confinement. J Agric Saf Health (2004) 0.78
Application of a subjective health and safety rating system to Iowa farm operations. Appl Occup Environ Hyg (1999) 0.78
Lack of thyroxine binding globulin (TBG) in pregnancy--a case report. J Iowa Med Soc (1976) 0.78
Pregnancy in a patient with a history of myocardial infarction and coronary artery bypass grafting. Am J Obstet Gynecol (1986) 0.77
Influence of cigarette smoking on bronchoalveolar lavage cellularity in asbestos-induced lung disease. Am Rev Respir Dis (1992) 0.77
Human placental lactogen: a predictor of perinatal outcome? Obstet Gynecol (1979) 0.76