function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Adlbauer, K. & Ayalew, Amare & Beck, R. & Drumont, A.', 2],
    ['Adlbauer, K. & Bjørnstad, A. & L, Sierra', 1],
    ['Behne, L & Gaedike, H', 1],
    ['Dauber, D.', 4],
    ['Gupta, Rajeev & Vitali, Francesco', 28],
    ['Ilić, Nastas & Ćurčić, Srećko', 1],
    ['Kadyrov, Abdysalom Kh. & Karpinski, Lech', 2],
    ['Karpinski, Lech & Szczepanski, Wojciech T. & lewa, Radoslaw', 1],
    ['Karpiński, Lech & Enkhnasan, Davaadorj & Boldgiv, Bazartseren', 3],
    ['Lin, Mei-Ying & Perissinotto, Renzo & Clennell, Lynette', 3],
    ['Sama, Gianfranco & Rapuzzi, Pierpaolo', 2],
    ['Schedl, W.', 2],
    ['Stefanelli, Silvia & Della Rocca, Francesca & Bogliani, Giuseppe', 2],
    ['Xian, Chunlan & Leong, Chi Man & Luo, Jiuyang & Jia, Fenglong', 2],
    ['Zong, Shi-Xiang & Xie, Guang-Lin & Wang, Wen-Kai & Luo, Youqing', 2],
    ['Other (3)', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=59)',
    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);