Cluster 28: lactating pregnant subject subjects intending patient non participant woman exclusion Cluster 41: breastfeeding pregnant patient lactating stop does agree fancd fascia farber Cluster 544: lactating female pregnant patients subject subjects breastfeeding patient non male Cluster 792: enrolled protocol subjects female intensification subject point treatment radiation completed Cluster 853: breastfeeding subject pregnant female healthy intends enrolling days study fancc Cluster 1913: lactating pregnant patients eligible participation practicing breastfeeding registration known ineligible Cluster 2004: female participants subjects patients years breastfeeding patient prefer whichever method Cluster 2108: female pregnant breastfeeding patients ineligible subjects eligible intends study actively