Effect of Long–Term Consumption of a Probiotic Bacterium, Lactobacillus rhamnosus GG, in Milk on Dental Caries and Caries Risk in Children

L Näse, K Hatakka, E Savilahti, M Saxelin, A Pönkä… - Caries …, 2001 - karger.com
Abstract Lactobacillus rhamnosus GG, ATCC (LGG), has shown antagonism to many
bacteria including mutans streptococci. This randomized, double–blind, placebo–controlled …

Methodological issues in studies of air pollution and daily counts of deaths or hospital admissions.

…, T Piekarksi, AP De Leon, A Pönkä… - … of Epidemiology & …, 1996 - jech.bmj.com
STUDY OBJECTIVE: To review the issues and methodologies in epidemiologic time series
studies of daily counts of mortality and hospital admissions and illustrate some of the …

Effect of long term consumption of probiotic milk on infections in children attending day care centres: double blind, randomised trial

K Hatakka, E Savilahti, A Pönkä, JH Meurman… - Bmj, 2001 - bmj.com
Objective: To examine whether long term consumption of a probiotic milk could reduce
gastrointestinal and respiratory infections in children in day care centres. Design …

Short term effects of air pollution on health: a European approach using epidemiologic time series data: the APHEA protocol.

…, B Wojtyniak, JM Vonk, A Tobias, A Pönkä… - … of Epidemiology & …, 1996 - jech.bmj.com
BACKGROUND AND OBJECTIVES: Results from several studies over the past five years
have shown that the current levels of pollutants in Europe and North America have adverse …

An International Outbreak of Salmonella Infections Caused by Alfalfa Sprouts Grown from Contaminated Seeds

BE Mahon, A Pönkä, WN Hall… - Journal of Infectious …, 1997 - academic.oup.com
An outbreak of Salmonella serotype stanley infections occurred in the United States and
Finland in 1995. The outbreak was investigated through case-control studies in Arizona …

Time-series analysis of air pollution and cause-specific mortality

…, Y Le Moullec, L Bacharova, J Schouten, A Pönkä… - Epidemiology, 1998 - JSTOR
Ten large European cities provided data on daily air pollution as well as mortality from
respiratory and cardiovascular mortality. We used Poisson autoregressive models that …

An outbreak of calicivirus associated with consumption of frozen raspberries

A Pönkä, L Maunula, CH Von Bonsdorff… - Epidemiology & …, 1999 - cambridge.org
In April 1988, an outbreak of gastroenteritis occurred among employees in a large company
in Helsinki, Finland. A retrospective cohort study, using a self-administered questionnaire …

Increased incidence of cancer and asthma in houses built on a former dump area.

E Pukkala, A Pönkä - Environmental health perspectives, 2001 - ehp.niehs.nih.gov
Twelve blockhouses were built in Helsinki in the 1970s on a former dump area containing
industrial and household waste. We investigated whether the exposure to landfill caused …

The effect of enhanced hygiene practices on absences due to infectious diseases among children in day care centers in Helsinki

A Pönkä, T Poussa, M Laosmaa - Infection, 2004 - Springer
Background: The occurrence of contagious diseases among children attending day care
centers (DCCs) is high. The possibility of reducing absences due to infections with an …

Asthma and low level air pollution in Helsinki

A Pönkä - Archives of Environmental Health: An International …, 1991 - Taylor & Francis
The effects of relatively low levels of air pollution and weather conditions on the number of
patients who had asthma attacks and who were admitted to a hospital were studied in …