If the Form Filler supports the Pre-Pop Option, the value of the pre-pop Data parameter in the Retrieve Form Request (see RFD Profile, ITI TF 2b:3.34.4.1.2) shall be a well-formed xml document as defined in the PCC Labor and Delivery Summary (LDS) Content Profile (1.3.6.1.4.1.19376.1.5.3.1.1.21.1.2,  see Labor and Delivery Profiles Trial Implementation Supplement, section Y.7). 
