function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Arens, Werner', 3],
    ['Eaumont', 54],
    ['Else, George R. & Bolton, Barry & Broad, Gavin R.', 4],
    ['Fabricius, Johann Christian', 15],
    ['Gadallah, Neveen S.', 14],
    ['Gadallah, Neveen S. & Abu El-Ghiet, Usama M.', 3],
    ['H, Phong & G, P. & N, Yuriy', 1],
    ['Jacobs, Hans-Joachim & Liebig, Wolf-Harald', 1],
    ['Jahantigh, Fatemeh & Rakhshani, Ehsan & Mokhtari, Azizollah', 5],
    ['Kumar, P. Girish & Monks, Joseph & Sheikh, Altaf Hussain', 2],
    ['Madl, M.', 5],
    ['Madl, Michael', 1],
    ['Madl, Michael & C, Bembecinus & F, Bembix & C, Brachystegus', 20],
    ['Malash, Alyaa A. & Edmardash, Yusuf A. & Gadallah, Neveen S.', 15],
    ['Mokrousov, M. V. & Proshchalykin, M. Yu. & Aliyev, Kh. A.', 2],
    ['Other (2)', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=147)',
    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);