निम्नलिखित में से कौन सा जोड़ों का विकार प्रकृति में ऑटोइम्यून (स्व-प्रतिरक्षित) है?

Which digestive hormone inhibits both gastric secretion and motility, stimulates insulin release, and is secreted mainly when fat is present in the duodenum?

The repeated sequence of gradual onset of apnoea followed by gradual restoration of respiration is called ________.