These are usually preemie for a preterm birth baby, 0 to 3 months, 3 to 6 months, 6 to 9 months, 9 to 12 months, 12 months, 18 months, and 24 months, though there is no industry standard definition for those sizes.
Biasanya dinamakan prematur untuk bayi kelahiran prematur, antara 0 sampai 3 bulan, 3-6 bulan, 6-9 bulan, 9-12 bulan, 12 bulan, 18 bulan, dan 24 bulan, meskipun tidak ada definisi standar industri untuk ukuran mereka.