Phylogeny, biogeography, and character evolution of (Gnaphalieae, Asteraceae).

The HAP clade, mainly including Mill, DC., and Kirp., is a major component of tribe Gnaphalieae (Asteraceae).

Phylogeny of in China-with a special reference to its nutlet morphology and plastid genome.

The genus comprises nearly 60 species mainly distributed in East and Southeast Asia. China has the largest number of species in the world, with a total of 44 species, of which 38 are endemic. Nutlet morphology is useful for the taxonomic delimitation of .

Phylogeny of (Asteraceae) in China-with a reference to plastid genome and nuclear ribosomal DNA.

The infrageneric taxonomy system, species delimitation, and interspecies systematic relationships of remain controversial and complex. However, only a few studies have focused on the molecular phylogeny of this genus. In this study, the characteristics of 43 chloroplast genomes of and its closely related genera were analyzed.

Relationship between breast cancer and levels of serum thyroid hormones and antibodies: a meta-analysis.

The breast and the thyroid are hormone responsive organs that are closely related with changes of endocrine function and glandular disease. An association between thyroid disorders and breast cancer (BC) risk has been suggested, although the results are inconclusive. The purpose of the present study was to summarize evidence supporting a relationship between BC and the level of thyroid hormones and antibodies.

Driver sleepiness and risk of car crashes in Shenyang, a Chinese northeastern city: population-based case-control study.

Objective: To estimate the association of driver sleepiness with the risk of car crashes.

Methods: A population-based case-control study was conducted in Shenyang, a northeastern city in China, between November 2001 and July 2002. The case group comprised 406 car drivers involved in crashes, and 438 car drivers recruited at randomly selected sites, and on the day of week, and the time of day when they were driving on highways in the study region during the study period were used as control groups.

[A case-control study on the risk factors for road injury].

Objective: To investigate the risk factors of road injury.

Methods: Case-control study was used. From November 2001 to August 2002, 406 drivers who had 438 drivers who had not experienced a motor vehicle crash in Huanggu district, Shenyang city were recruited by randomly selection on time of day, day of week and site in the same period at same district.