function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bogusch, Petr', 25],
    ['Bogusch, Petr & van Achterberg, Cornelis & Silhan, Karel', 3],
    ['Broad, Gavin R. & Livermore, Laurence', 14],
    ['Ghahari, Hassan & Madl, Michael', 28],
    ['Jennings, John T. & Jourdan, Hervé & Krogmann, Lars', 5],
    ['Johansson, Niklas & van Achterberg, Cornelis', 3],
    ['Macedo, Antonio Carlos Cruz', 31],
    ['Parslow, Ben A. & Jennings, John T.', 2],
    ['Parslow, Ben A. & Stevens, Mark I. & Schwarz, Michael P.', 2],
    ['Ramage, Thibault & Jouault, Corentin', 6],
    ['Tan, Jiang-Li & Achterberg, Cornelis van & Tan, Qing-Qing', 10],
    ['Tan, Jiang-Li & Achterberg, Cornelis van & Wu, Jia-Xuan', 23],
    ['Zhao, Ke-xin & Achterberg, Cornelis van & Xu, Zai-fu', 30],
    ['van Achterberg, C. & Sundukov, Yu. N. & Lelej, A. S.', 9],
    ['van Achterberg, Cornelis & Talebi, Ali Asghar', 36],
    ['Other (7)', 7]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=234)',
    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);