@base . a , , ; , , ; "Psychological services." ; ; ; ; "1541-1559" ; ; ; "1541-1559" ; ; "1541-1559" ; "Psychological services" , "Psychological services." ; ; "http://www.apa.org/journals/ser.html" . a ; . . a . a ; "1541-1559" ; . a ; ; "20210206221200.0"^^ ; ; . a ; "1541-1559" ; . "District of Columbia" . a , ; "Psychological services" .