function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Ardila-Camacho, Adrian & Vargas, Juan Felipe', 4],
    ['Chen, Jing & Tan, Jiangli & Hua, Baozhen', 6],
    ['Du, Wei & Hua, Bao-Zhen', 3],
    ['Krzemiński, Wieslaw', 5],
    ['Le-Le, HE & Bao-Zhen, HUA', 4],
    ['Li, Yan-Li & Ren, Dong & Shih, Chung-Kun', 4],
    ['Liu, Sulin & Shih, Chungkun & Bashkuev, Alexei & Ren, Dong', 4],
    ['Liu, Sulin & Shih, Chungkun & Ren, Dong', 6],
    ['Machado, Renato Jose Pires & Mendes, Diego Matheus De Mello', 18],
    ['Midgley, John M. & Bellingan, Terence A.', 4],
    ['Stark, Bill P. & Lago, Paul K. & Harrison, Audrey B.', 6],
    ['Tan, Jiang-Li & Hua, Bao-Zhen', 8],
    ['Tan, Jiangli & Hua, Baozhen', 5],
    ['Yang, Xiaoguang & Ren, Dong & Shih, Chungkun', 4],
    ['Zhang, Yan-Na & Du, Wei & Hua, Bao-Zhen', 5],
    ['Other (19)', 31]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=117)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 16, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);