Weight of newborn doubles by what age ?
O.P. Ghai 9th edition - page 13. "An infant usually doubles his bih weight at the age of 5 months. The bih weight triples at 1 year and is 4 times at the age of 2 years. Thus, the weight at 5 months, 1 year and 2 years is 6, 9 and 12 kgs, respectively."
6 months
1 year
2 years
4 years
General anatomy