| Literature DB >> 14206448 |
P R N POLAK, R EMDE, R A SPITZ.
Abstract
Entities:
Keywords: EMOTIONS; FACIAL EXPRESSION; INFANT; INFANT, NEWBORN; LAUGHTER
Mesh:
Year: 1964 PMID: 14206448 DOI: 10.1097/00005053-196408000-00002
Source DB: PubMed Journal: J Nerv Ment Dis ISSN: 0022-3018 Impact factor: 2.254