Castillo, R. (2009). C-section babies might have weaker immune systems. Philippine Daily Inquirer.
Cita Chicago (17th ed.)Castillo, Rafael. "C-section Babies Might Have Weaker Immune Systems." Philippine Daily Inquirer 2009.
Cita MLA (9th ed.)Castillo, Rafael. "C-section Babies Might Have Weaker Immune Systems." Philippine Daily Inquirer, 2009.
Atenció: Aquestes cites poden no estar 100% correctes.