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As shown in Figure 3, for a given tidal volume a greater inspiratory effort is needed in smokers with airflow limitation as compared to healthy subjects, such that the greater the slope (b) of VT to effort relationship, the greater the perception of dyspnea

Chemicals such as nicotine, arsenic, lead, and other heavy metals may leak into your organic compost

First record of plastic debris ingestion by a fin whale ( Balaenoptera physalus ) in the sea off East Asia

It may feel like anxiety is worse, but there are coping skills to practice that help ease the nicotine withdrawal