function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Alonso, María R. & Ponte-Lira, Carmen E. & Castillo, Carolina', 3],
    ['Bank, Ruud A. & Gittenberger, Edmund & Neubert, Eike', 7],
    ['Bitzilekis, Eleftherios & Vardinoyannis, Katerina', 7],
    ['Cavallari, Daniel C. & Dornellas, Ana Paula S.', 2],
    ['Dedov, Ivailo & Antonova, Vera', 6],
    ['Frank, Christa', 8],
    ['Hausdorf, Bernhard', 48],
    ['Hausdorf, Bernhard & Gümüs, Burcin Askım & Yıldırım, M. Zeki', 2],
    ['Hesse, P.', 2],
    ['Hutterer, Rainer & Groh, Klaus', 4],
    ['Ibáñez, Miguel & Siverio, Felipe & Alonso, María R.', 3],
    ['Irikov, A.', 10],
    ['Kneubuehler, Jeannette & Baggenstos, Markus & Neubert, Eike', 2],
    ['Neubert, Eike & Bariche, Michel', 7],
    ['Plazzi, Federico & Pedroni, Guido', 5],
    ['Other (19)', 19]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=135)',
    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);