Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation

Search Page

Filters

My NCBI Filters

Results by year

Table representation of search results timeline featuring number of search results per year.

Year Number of Results
1973 1
1975 1
1977 2
1978 1
1992 1
1993 5
1994 4
1995 2
1996 2
1997 5
1998 1
1999 1
2000 3
2001 2
2002 3
2003 2
2004 1
2005 5
2010 1
2011 1
2012 2
2013 2
2014 1
2015 2
2019 1
2020 1
2024 0

Text availability

Article attribute

Article type

Publication date

Search Results

50 results

Results by year

Filters applied: . Clear all
Page 1
Separating identical from fraternal twins.
Cohen DJ, Dibble E, Grawe JM, Pollin W. Cohen DJ, et al. Among authors: grawe jm. Arch Gen Psychiatry. 1973 Oct;29(4):465-9. doi: 10.1001/archpsyc.1973.04200040021004. Arch Gen Psychiatry. 1973. PMID: 4795884 No abstract available.
Reliably separating identical from fraternal twins.
Cohen DJ, Dibble E, Grawe JM, Pollin W. Cohen DJ, et al. Among authors: grawe jm. Arch Gen Psychiatry. 1975 Nov;32(11):1371-5. doi: 10.1001/archpsyc.1975.01760290039004. Arch Gen Psychiatry. 1975. PMID: 1239251
50 results