When writing a paper where you are citing from another paper which uses a different citation style, how should one cite portions of text that contain in-text citations? For example
“Malnutrition has often been referred to as “the skeleton in the hospital closet”, as it is often overlooked, under-diagnosed, and untreated [69,70].Despite this, the negative consequences of malnutrition have been widely reported..." (Barker, Grout & Crowe, 2011).
An alternative format would be
"Malnutrition has often been referred to as "the skeleton in the hospital closet" , as it is often overlooked, under-diagnosed, and untreated (McKee, 2011; Busby, 2008; in Barker, Grout, & Crowe, 2011). Despite this...."( Barker, Grout, & Crowe, 2011).
This seems an awkward and redundant solution. Would this be considered correct for APA style? What about other citation styles; MLA,etc.?