12q: all of the following cause reference pain to left shoulder except ?
13q: which of the following day is considered as no smoking day ?
a. first wednesday of march
b. second wednesday of march
c. first wednesday of april
d. second wednesday of april
14q: narrowest part of the upper airway in children ?
15q: which of the following is the agent of choice for sclerotherapy ?
b. sodium tetradecyl sulfate
c. ethanolamine oleate