function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Dursun, A. & Fent, M.', 2],
    ['Eger, Joseph E.', 1],
    ['Forero, Dimitri', 1],
    ['Ishikawa, Tadashi & Saito, Masayuki U. & Kishimoto-Yamada, Keiko', 2],
    ['J. E. Eger, Jr. & Ames, M. & Suiter, D. R. & Jenkins, T. M.', 1],
    ['Kment, Petr & Baňař, Petr & Bílý, Svatopluk', 1],
    ['Krüger, Andreas & Deckert, Jürgen', 1],
    ['Linnavuori, Rauno E.', 1],
    ['Powell, Erin C. & Halbert, Susan E. & Deeter, Lily', 1],
    ['Rédei, Dávid', 3],
    ['Sakenin, H. & Samin, N. & Rastegari, J. & Havaskary, M.', 1],
    ['Salini, S. & Roca-Cusachs, M.', 6],
    ['Schmidt, Stefan & Polaszek, Andrew', 1],
    ['Xian, Chunlan & Leong, Chi Man & Luo, Jiuyang & Jia, Fenglong', 3],
    ['edei, David & indra, Zdenek', 2],
    ['Other (2)', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=29)',
    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);