function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bayartogtokh, Badamdorj & Ermilov, Sergey G.', 2],
    ['Beck, L. & Woas, S.', 2],
    ['Behan-Pelletier, V. M.', 19],
    ['Behan-Pelletier, Valerie M. & Eamer, Barbara', 2],
    ['Behan-Pelletier, Valerie M. & Lindo, Zoë', 25],
    ['Behan-Pelletier, Valerie M. & Walter, David E.', 16],
    ['Ermilov, Sergey G. & Behan-Pelletier, Valerie M.', 2],
    ['LIU, DONG & YI, TIAN-CI & XU, YUN & ZHANG, ZHI-QIANG', 17],
    ['Murvanidze, Maka & Mumladze, Levan', 11],
    ['Norton, Roy A. & Ermilov, Sergey G.', 7],
    ['Oliveira, Anibal R. & Argolo, Poliane S. & De, Gilberto J.', 2],
    ['Schatz, Heinrich & Fortini, Lorenzo & Fusco, Tommaso', 4],
    ['Seniczak, Stanisław & Seniczak, Anna', 3],
    ['Weigmann, G. & Miko, L.', 10],
    ['Willmann, C.', 4],
    ['Other (5)', 6]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=132)',
    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);