SINGAPORE - Emeritus Senior Minister Goh Chok Tong will be undergoing four weeks of radiotherapy following the removal of a lump in his larynx. This is to ensure that all cancerous cells are killed off. "Just like the weather these days, it never rains but pours for me medically," the former prime minister wrote in his most recent post. "What a way to celebrate the festive season!" In the post, Mr Goh said the suspicious lump in his larynx was found to have cancerous squamous cells. Although scans found no trace of these cells in his neck or chest, he will be undergoing radiotherapy to make sure all cancerous cells are killed off. "I share my medical episodes to encourage everyone to go for regular or annual health screenings," Mr Goh said, encouraging people to seek medical help if they find that their voice has changed and they have a lump in their throat. The Health Ministry has a subsidised health screening programme, called Screen For Life, which heavily subsidises the cost of screening for ailments such as cervical, breast and colorectal cancers. "Ignorance, delay and denial may be costly," Mr Goh wrote. "Spot and treat the cancer early, the five-year survival rate is over 90...