Sonic hedgehog signaling during adrenal development
Keywords: HPA, hypothalamic–pituitary–adrenal axis; RAS, renin angiotenin system; PHS, Pallister–Hall syndrome; AGP, adrenogonadal primordium; Shh/Ihh/Dhh, Sonic/Indian/Desert hedgehog; Ptch1, patched 1; Smo, smoothened; ZG, zona glomerulosa; ZF, zona fasciculata;