function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Abdinbekova, Arifa & Huseynova, Ellada & Kerimova, Ilhama', 3],
    ['Aguirre, Helmuth & Almeida, Luis Felipe Ventura De', 24],
    ['Baur, Hannes', 1],
    ['Belokobylskij, S. A. & Ku, D. - S.', 1],
    ['Broad, Gavin R. & Shaw, Mark R. & Godfray, H. Charles J.', 14],
    ['Gadallah, Neveen S. & Edmardash, Yusuf A. & Mansour, Amany N.', 1],
    ['Gadallah, Neveen S. & Ghahari, Hassan & Achterberg, Kees Van', 3],
    ['Gupta, Ankita & Van Achterberg, Cornelis', 1],
    ['Koldas, T. & Aydogdu, M. & Beyarslan, A.', 2],
    ['Ku, Deok-Seo & Samartsev, Konstantin G.', 1],
    ['Madl, M. & Achterberg, C. Van', 4],
    ['Riley, C. V.', 1],
    ['Rousse, Pascal & Braet, Yves', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=58)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 13, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);