Deficiency of surfactant is seen in diseases like respiratory distress syndrome, chronic lung diseases, interstitial lung diseases etc. A combination of surfactant (natural or synthetic) and hormones or other pharmacological agents associated with surfactant homeostasis are useful in treating these diseases.
PayPal balance: If someone sent you money through PayPal or youâve sold something on eBay, you have a balance in your PayPal account. This balance is first applied to any purchases youâve made. Then, when your account has no balance, you can choose to pay by credit card.
How does PayPal Make Money. PayPal is a FinTech Product that was born out of the need to replace paper payment solutions like check and cash. PayPal has evolved through a large cycle of Business Model Evolution until it figured out the current model of service fee for fund transfers.