function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Agrain, Federico A. & Chamorro, Maria Lourdes & Cabrera, Nora', 1],
    ['Bukejs, Andris', 3],
    ['Bukejs, Andris & Chamorro, Maria Lourdes', 2],
    ['Cho, H. - W. & An, S. L.', 30],
    ['Clark, Shawn M. & Lillrose, Tiffany & Belo Neto, Luiz A.', 4],
    ['Ekiz, Ali Nafiz & Şen, İsmail & Aslan, Ebru Gül & Gök, Ali', 5],
    ['Germann, Christoph & Borer, Matthias & Herger, Peter', 2],
    ['Guskova, Elena V. & Akulov, Evgeny N. & Loshchev, Sergey M.', 42],
    ['Petitpierre, Eduard & Sacarés, Antoni & Jurado-Rivera, José A.', 10],
    ['Ruchin, Alexaner B. & Egorov, Leonid V. & Alekseev, Sergei K.', 2],
    ['Sassi, Davide', 4],
    ['Schöller, Matthias', 5],
    ['Sergeev, M. E.', 4],
    ['V, Pavel & Schöller, Matthias', 2],
    ['Xian, Chunlan & Leong, Chi Man & Luo, Jiuyang & Jia, Fenglong', 2],
    ['Other (6)', 6]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=124)',
    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);