title: A review of the collaborative exercises on DNA typing of the Spanish and Portuguese ISFH Working Group. International Society for Forensic Haemogenetics.
abstract: Since 1992 the Spanish and Portuguese Working Group (GEP) of the International Society for Forensic Haemogenetics (ISFH) has been organizing collaborative exercises on DNA profiling with the aim of making progress on standardization and discussing technical and statistical problems in DNA analysis. A total of four exercises (GEP-92 to GEP-95) have been carried out until now. A consequence of these exercises was the creation of a quality control programme in Spain and Portugal in 1995 which was carried out simultaneously with the GEP-95 exercise. The number of participating laboratories increased from 10 in the first exercise (GEP-92) to 19 in the last exercise (GEP-95). Despite this increasing number of participating laboratories, results remained satisfactory. In the last exercises, all the laboratories used PCR-based DNA polymorphisms with an increasing number of markers obtaining good results. SLPs were used by only 30% of laboratories in the last two exercises but the results indicated a good level of expertise in most of these laboratories. The reasons for these successful results are the common use of the EDNAP protocol for SLP analysis and commercially available kits or common sequenced allelic ladders for PCR-based DNA polymorphisms.
authors.affiliation: Instituto Nacional de Toxicología, Madrid, Spain.
authors.forename: J
authors.initials: J
authors.lastname: Gómez
authors.forename: M S
authors.initials: MS
authors.lastname: Rodriguez-Calvo
authors.forename: C
authors.initials: C
authors.lastname: Albarrán
authors.forename: A
authors.initials: A
authors.lastname: Amorim
authors.forename: J
authors.initials: J
authors.lastname: Andradas
authors.forename: C
authors.initials: C
authors.lastname: Cabrero
authors.forename: R
authors.initials: R
authors.lastname: Calvet
authors.forename: D
authors.initials: D
authors.lastname: Corach
authors.forename: M
authors.initials: M
authors.lastname: Crespillo
authors.forename: C
authors.initials: C
authors.lastname: Doutremépuich
authors.forename: O
authors.initials: O
authors.lastname: García
authors.forename: H
authors.initials: H
authors.lastname: Geada
authors.forename: M
authors.initials: M
authors.lastname: Gené
authors.forename: S
authors.initials: S
authors.lastname: Jimenez
authors.forename: J A
authors.initials: JA
authors.lastname: Lorente
authors.forename: S M
authors.initials: SM
authors.lastname: Marques-Santos
authors.forename: B
authors.initials: B
authors.lastname: Martínez-Jarreta
authors.forename: M
authors.initials: M
authors.lastname: Martínez de Pancorbo
authors.forename: F
authors.initials: F
authors.lastname: Montes
authors.forename: J M
authors.initials: JM
authors.lastname: Ruíz de la Cuesta
authors.forename: P
authors.initials: P
authors.lastname: Sanz
authors.forename: M F
authors.initials: MF
authors.lastname: Terra-Pinheiro
authors.forename: M C
authors.initials: MC
authors.lastname: Vide
authors.forename: A
authors.initials: A
authors.lastname: Carracedo
mesh_terms: D001801:Blood Stains; D005554:Forensic Medicine; D006801:Humans; D007391:International Cooperation; D007753:Laboratories / Q000592:standards*; D010334:Paternity; D011110:Polymorphism, Genetic; D011174:Portugal; D011786:Quality Control; D012015:Reference Standards; D015203:Reproducibility of Results; D013030:Spain