TY  - GEN
AU  - Nicholson,James M
AU  - Kellar,Lisa C
AU  - Ural,Serdar
TI  - New definition of term pregnancy
SN  - 1538-3598
PY  - 2013///1118
KW  - Female
KW  - Gestational Age
KW  - Humans
KW  - Pregnancy
KW  - statistics & numerical data
KW  - Premature Birth
KW  - classification
KW  - Terminology as Topic
N1  - Publication Type: Journal Article; Comment
UR  - https://doi.org/10.1001/jama.2013.277993
ER  -