function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Cao, Thi Kim Thu & Bae, Yeon Jae', 2],
    ['Chen, Zhi-Teng', 1],
    ['Dela Cruz, Ian Niel B. & Nuñeza, Olga M. & Lin, Chung-Ping', 1],
    ['Li, Weihai & Qin, Xuefeng', 1],
    ['Mason, Denise & Stark, Bill P.', 6],
    ['Mo, Raorao & Wang, Ying & Wang, Guoquan & Li, Weihai', 3],
    ['Mo, Raorao & Yan, Yanhua & Wang, Guoquan & Li, Weihai', 1],
    ['Pelingen, Arthien Lovell', 2],
    ['Sivec, Ignac & Stark, Bill P.', 17],
    ['Stark, Bill P. & Sheldon, Andrew L.', 5],
    ['Stark, Bill P. & Sivec, Ignac', 4],
    ['Wang, Yingying & Li, Wenliang & Li, Weihai', 5]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=48)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 12, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);