A child is below the third percentile for height. Growth velocity is normal, but chronologic age is more than skeletal age. The most likely diagnosis is________?

In PHC, which anticoagulant is used to send the blood sample for blood glucose________?

The tissue macrophages are derived from the________?

The first heart sound is produced by the________?

________ is an example for rapidly acting neurotransmitter?

What is true about pneumothorax?