O'Brien, Mary and Moran, Rosalyn and O'Brien, Aoife (2000) Annotated bibliography of drug misuse in Ireland. Dublin: Health Research Board .

Smyth, Bobby P and O'Brien, Mary (2004) Children attending addiction treatment service in Dublin, 1990-1999. European Addiction Research , 10 , pp. 68-74.

Moran, Rosalyn and Dillon, Lucy and O'Brien, Mary and Mayock, Paula and Farrell, Eimear and Pike, Brigid (2001) A collection of papers on drugs issues in Ireland. Dublin: Health Research Board .

Dillon, Lucy and O'Brien, Mary (2001) Drug-related infectious diseases. In: A collection of papers on drugs issues in Ireland. Dublin: Health Research Board , 48 - 79.

Bryan, Audrey and Farrell, Eimear and Moran, Rosalyn and O'Brien, Mary (2000) Drug-related knowledge, attitudes and beliefs in Ireland: report of a nation wide survey. Dublin: Health Research Board.

O'Brien, Mary and Dillon, Lucy (2001) Health issues and consequences of drug misuse. In: Overview of drug issues in Ireland 2000: a resource document. Dublin: Health Research Board , pp. 55-78.

O'Brien, Mary (1997) Ireland 1986-1996. Research in the area of illicit drugs: national situation and identification of needs. In: Drugs Research Related Initiatives in the European Union, 13-14 Septebmer 1996, Florence, Italy.

Sinclair, Hamish and O'Brien, Mary and Dillon, Lucy and Keane, Martin and Pike, Brigid (2001) Ireland national report 2001. Dublin: Health Research Board.

O'Brien, Mary (2001) Law enforcement and drug-related crime. In: Overview of drug issues in Ireland 2000: a resource document. Dublin: Health Research Board , PP 95-106.

O'Brien, Mary and Dillon, Lucy and Moran, Rosalyn (2001) Legal framework. In: Overview of drug issues in Ireland 2000: a resource document. Dublin: Health Research Board , pp. 12-39.

O'Brien, Mary and Kelleher, Tracy and Cahill, Paul (2000) National Drug Treatment Reporting System. statistical bulletin 1997 and 1998. Dublin: Health Research Board.

Moran, Rosalyn and O'Brien, Mary and Dillon, Lucy and Farrell, Eimear and Mayock, Paula (2000) National report on drug issues Ireland: Ireland 2000. Dublin: Health Research Board.

Sinclair, Hamish and O'Brien, Mary and Keane, Martin and Pike, Brigid and Dillon, Lucy (2002) National report on drug issues Ireland: Ireland 2002. Dublin: Health Research Board.

Moran, Rosalyn and O'Brien, Mary and Farrell, Eimear and Dillon, Lucy (2000) National report on drug issues: Ireland 1999. Dublin: Health Research Board.

O'Brien, Mary and Duff, Petrina (1997) National report on drugs issues in Ireland 1996. Dublin: Health Research Board.

O'Brien, Mary and Duff, Petrina (1998) National report on drugs issues in Ireland 1997. Dublin: Health Research Board.

O'Brien, Mary and Moran, Rosalyn (1999) National report on drugs issues in Ireland 1998. Dublin: Health Research Board.

O'Brien, Mary and Moran, Rosalyn (1998) Overview of drug issues in Ireland 1997: a resource document. Dublin: Health Research Board .

Moran, Rosalyn and O'Brien, Mary and Dillon, Lucy and Farrell, Eimear and Mayock, Paula (2001) Overview of drug issues in Ireland 2000: a resource document. Dublin: Health Research Board .

O'Brien, Mary (2001) Research findings on drug use. In: Overview of drug issues in Ireland 2000: a resource document. Dublin: Health Research Board , pp. 41-53.

Duff, Petrina and Moran, Rosalyn and O'Brien, Mary (1998) A study on the feasibility of the inclusion of general practitioners and prisons in the National Drug Treatment Reporting System: plan for the implementation of the NDTRS in prison and GP services. Final report. Dublin: Health Research Board.

Moran, Rosalyn and O'Brien, Mary and Duff, Petrina (1997) Treated drug misuse in Ireland: national report 1996. Dublin: Health Research Board.

O'Hare, Aileen and O'Brien, Mary (1992) Treated drug misuse in the greater Dublin area 1990. Dublin: Health Research Board.

O'Hare, Aileen and O'Brien, Mary (1993) Treated drug misuse in the greater Dublin area 1991. Dublin: Health Research Board.

O'Higgins, Kathleen and O'Brien, Mary (1995) Treated drug misuse in the greater Dublin area. Report for 1994. Dublin: Health Research Board.

O'Higgins, Kathleen and O'Brien, Mary (1994) Treated drug misuse in the greater Dublin area: report for 1992 & 1993. Dublin: Health Research Board.

Health Research Board. Drugs Misuse Research Division. O'Brien, Mary and Kelleher, Tracy and Cahill, Paul (2002) Trends in treated drug misuse in the Eastern Health Board Area 1996-1999. Occasional Paper no. 8. Dublin: Health Research Board.

Health Research Board. Drugs Misuse Research Division. O'Brien, Mary and Kelleher, Tracy and Cahill, Paul (2002) Trends in treated drug misuse in the Mid Western Health Board Area 1996-2000. Occasional Paper no. 5. Dublin: Health Research Board.

Health Research Board. Drugs Misuse Research Division. O'Brien, Mary and Kelleher, Tracy and Cahill, Paul (2002) Trends in treated drug misuse in the Midland Health Board Area 1996-2000. Occasional Paper no. 3. Dublin: Health Research Board.

Health Research Board. Drugs Misuse Research Division. O'Brien, Mary and Kelleher, Tracy and Cahill, Paul (2002) Trends in treated drug misuse in the North Eastern Health Board Area 1996-2000. Occasional Paper no. 6. Dublin: Health Research Board.

Health Research Board. Drugs Misuse Research Division. O'Brien, Mary and Kelleher, Tracy and Cahill, Paul (2002) Trends in treated drug misuse in the North Western Health Board Area 1996-2000. Occasional Paper no. 2. Dublin: Health Research Board.

Health Research Board. Drugs Misuse Research Division. O'Brien, Mary and Kelleher, Tracy and Cahill, Paul and Kelly, Fionnola and Long, Jean (2003) Trends in treated drug misuse in the Republic of Ireland, 1996 to 2000. Occasional Paper no. 9. Dublin: Health Research Board.

Health Research Board. Drugs Misuse Research Division. O'Brien, Mary and Kelleher, Tracy and Cahill, Paul (2002) Trends in treated drug misuse in the South Eastern Health Board Area 1996-2000. Occasional Paper no. 7. Dublin: Health Research Board.

Health Research Board. Drugs Misuse Research Division. O'Brien, Mary and Kelleher, Tracy and Cahill, Paul (2002) Trends in treated drug misuse in the Southern Health Board Area 1996-2000. Occasional Paper no. 1. Dublin: Health Research Board.

Health Research Board. Drugs Misuse Research Division. O'Brien, Mary and Kelleher, Tracy and Cahill, Paul (2002) Trends in treated drug misuse in the Western Health Board Area 1996-2000. Occasional Paper no. 4. Dublin: Health Research Board.

Smyth, Bobby P and O'Brien, Mary and Barry, Joseph (2000) Trends in treated opiate misuse in Dublin: the emergence of chasing the dragon. Addiction , 95 , (8) , pp. 1217-1223.