function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Ashman, Lauren G. & Oberprieler, Rolf G. & Ślipiński, Adam', 2],
    ['Bouchard, Patrice & Bousquet, Yves & Davies, Anthony E.', 1],
    ['Escalona, Hermes E. & Lawrence, John F. & Ślipiński, Adam', 9],
    ['Guo, Mingxia & Xing, Lida & Wang, Bo & Zhang, Weiwei', 2],
    ['Li, Yan-Da & Huang, Di-Ying & Cai, Chen-Yang', 2],
    ['Li, Yan-Da & Tihelka, Erik & Pang, Hong & Huang, Di-Ying', 2],
    ['Li, Yan-Da & Yamamoto, Shûhei & Huang, Di-Ying & Cai, Chen-Yang', 2],
    ['Li, YanDa & Huang, DiYing & Cai, ChenYang', 2],
    ['STRELNIKOVA, OLESYA D. & YAN, EVGENY V.', 10],
    ['Strelnikova, O. D. & Yan, E. V.', 4]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=36)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 10, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);