NPPA and hydrops fetalis: Moderate negative correlations were found between subprofiles: N1 (eGFR; serum creatinine; urinary creatinine; albumin/creatinine ratio) and R6 (exhaled CO2); C3 (MR-proANP, NT-proBNP) and C4 (HRV: LF, HF, TP); N2 (renal densitometry) and R1 (FVC; FEV1); R1 (FVC; FEV1) and R10 (lung volume); R10 (lung volume) and R7 (SaO2 pre-6MWT; SaO2 post-6MWT); R10 (lung volume) and R9 (Borg scale post-6MWT; RR post-6MWT); R2 (pO2) and R3 (pCO2); R3 (pCO2) and R4 (pH).