Serum Vitamin D level ______ are indicative of sub-clinical Vitamin D deficiency.
A. < 20 ng/dl
B. < 10 ng/dl
C. < 30 ng/dl
D. < 5 ng/dl
Answer:A
Serum Vitamin D level ______ are indicative of sub-clinical Vitamin D deficiency.
A. < 20 ng/dl B. < 10 ng/dl C. < 30 ng/dl D. < 5 ng/dl