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The quantitative analyses and the study of practising psychiatrists agreed in delineating depressive type and together suggest a more restricted construct of endogenous and psychotic depression than has been held historically. Key clinical features isolated were severity, retardation, delusions and paranoid features, non-reactivity and non-variability in mood, while vegetative features appeared to lack relevance. <\/jats:p>","DOI":"10.3109\/00048678909068293","type":"journal-article","created":{"date-parts":[[2007,11,22]],"date-time":"2007-11-22T01:51:13Z","timestamp":1195696273000},"page":"357-368","source":"Crossref","is-referenced-by-count":19,"title":["Endogenous Depression as a Construct: A Quantitative Analysis of the Literature and a Study of Clinician Judgements"],"prefix":"10.1177","volume":"23","author":[{"given":"Gordon","family":"Parker","sequence":"first","affiliation":[{"name":"Mood Disorders Unit and School of Psychiatry, (University of New South Wales), Prince Henry Hospital, Sydney, NSW"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Dusan","family":"Hadzi-Pavlovic","sequence":"additional","affiliation":[{"name":"Mood Disorders Unit and School of Psychiatry, (University of New South Wales), Prince Henry Hospital, Sydney, NSW"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Philip","family":"Boyce","sequence":"additional","affiliation":[{"name":"Mood Disorders Unit and School of Psychiatry, (University of New South Wales), Prince Henry Hospital, Sydney, NSW"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[1989,9,1]]},"reference":[{"key":"bibr1-00048678909068293","doi-asserted-by":"publisher","DOI":"10.1192\/bjp.111.477.659"},{"key":"bibr2-00048678909068293","doi-asserted-by":"publisher","DOI":"10.1192\/bjp.121.2.183"},{"volume-title":"Handbook of Affective Disorders","year":"1980","author":"Andreasen NC","key":"bibr3-00048678909068293"},{"key":"bibr4-00048678909068293","doi-asserted-by":"publisher","DOI":"10.1001\/archpsyc.1974.01760160005001"},{"key":"bibr5-00048678909068293","doi-asserted-by":"publisher","DOI":"10.1192\/bjp.148.3.257"},{"key":"bibr6-00048678909068293","doi-asserted-by":"publisher","DOI":"10.1016\/S0010-440X(79)80004-8"},{"key":"bibr7-00048678909068293","doi-asserted-by":"publisher","DOI":"10.1192\/bjp.137.3.256"},{"key":"bibr8-00048678909068293","doi-asserted-by":"publisher","DOI":"10.1097\/00005053-198210000-00002"},{"key":"bibr9-00048678909068293","doi-asserted-by":"publisher","DOI":"10.1192\/bjp.146.3.297"},{"key":"bibr10-00048678909068293","doi-asserted-by":"publisher","DOI":"10.3109\/00048677809159600"},{"key":"bibr11-00048678909068293","doi-asserted-by":"publisher","DOI":"10.1192\/bjp.133.1.53"},{"key":"bibr12-00048678909068293","doi-asserted-by":"publisher","DOI":"10.1192\/bjp.115.525.937"},{"key":"bibr13-00048678909068293","doi-asserted-by":"publisher","DOI":"10.1192\/bjp.118.544.275"},{"key":"bibr14-00048678909068293","doi-asserted-by":"publisher","DOI":"10.1176\/ajp.138.1.1"},{"key":"bibr15-00048678909068293","doi-asserted-by":"publisher","DOI":"10.1192\/bjp.112.486.471"},{"key":"bibr16-00048678909068293","first-page":"306","volume":"79","author":"Gillespie RD","year":"1929","journal-title":"Guy's Hospital Reports"},{"key":"bibr17-00048678909068293","doi-asserted-by":"publisher","DOI":"10.1192\/bjp.113.498.479"},{"key":"bibr18-00048678909068293","doi-asserted-by":"publisher","DOI":"10.1176\/ajp.124.11S.1"},{"key":"bibr19-00048678909068293","doi-asserted-by":"publisher","DOI":"10.1192\/bjp.105.441.985"},{"key":"bibr20-00048678909068293","doi-asserted-by":"publisher","DOI":"10.1192\/bjp.109.461.451"},{"key":"bibr21-00048678909068293","doi-asserted-by":"publisher","DOI":"10.1001\/archpsyc.1967.01730200109016"},{"key":"bibr22-00048678909068293","doi-asserted-by":"publisher","DOI":"10.1016\/0022-3956(71)90010-0"},{"key":"bibr23-00048678909068293","doi-asserted-by":"publisher","DOI":"10.1017\/S0033291700042306"},{"volume-title":"Factor Analysis and Related Methods","year":"1985","author":"McDonald RP","key":"bibr24-00048678909068293"},{"volume-title":"The Behavioural and Life Sciences","year":"1978","author":"Cattell RB","key":"bibr25-00048678909068293"},{"key":"bibr26-00048678909068293","doi-asserted-by":"publisher","DOI":"10.1177\/001316446902900405"},{"volume-title":"The Classification of Depressive Illnesses","year":"1968","author":"Kendell RE","key":"bibr27-00048678909068293"},{"key":"bibr28-00048678909068293","doi-asserted-by":"publisher","DOI":"10.3109\/00048678609158882"},{"key":"bibr29-00048678909068293","doi-asserted-by":"publisher","DOI":"10.1192\/bjp.152.1.15"}],"container-title":["Australian &amp; 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