Skip to main content
. 2001 Oct 23;2001(4):CD000424. doi: 10.1002/14651858.CD000424
mean phrase length at end of first period of study
Study  
Gupta 1995 Data are in an inappropriate form for reanalysis in the review as raw data are not given for the end of the first stage of the study, which is the period relevant for this review.