Difficult breathing with a high-pitched whistling or sighing sound during expiration is

The three ways to evaluate a risk factor are: decide if you have control over the risk factor compare the benefit vs. the risk of a choice

Which of these is not related to the teeth? a. chymob. pulpc. enamold. dentin

Me d: which system contains the heart, blood, and blood vessels? a. muscular b. circulatory c. respiratory d. digestive which system contains the pituitary, adrenal, and thyroid glands? a. respiratory b. circulatory c. endocrine d. reproductive