function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Luong, Anh Mai & Hoang, Chung Van & Pham, Cuong The', 1],
    ['Mahony, Stephen & Kamei, Rachunliu G. & Teeling, Emma C.', 1],
    ['Qi, Shuo & Lyu, Zhi-Tong & Wang, Jian & Mo, Yun-Ming', 7],
    ['Raj, Prudhvi & Lalremsanga, Hmar Tlawmte', 1],
    ['Shu, Guocheng & Li, Ke & Wu, Yayong & Liu, Qin & He, Zhongping', 1],
    ['Wang, Ying-Yong', 1],
    ['Wang, Ying-Yong & Zhang, Tian-Du & Zhao, Jian & Sung, Yik-Hei', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=13)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 7, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);