RT Journal Article SR Electronic T1 The Extent in England of Health Visitor Attachment to General Practices JF The Journal of the College of General Practitioners JO J Coll Gen Pract FD British Journal of General Practice SP 373 OP 374 VO 8 IS 3 A1 R. S. V. Marshall YR 1964 UL http://bjgp.org/content/8/3/373.abstract AB