function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Arzanov, Yu. G. & Martynov, V. V. & Nikulina, T. V.', 41],
    ['Colonnelli, Enzo & Osella, Giuseppe', 1],
    ['Douglas, Hume & Bouchard, Patrice & Anderson, Robert S.', 1],
    ['Frivaldszky, Johann von', 1],
    ['Germann, Christoph & Müller, Gerd & Müller, Ursula', 2],
    ['Ghahari, H. & A. A & Y. G', 3],
    ['Ghahari, H. & Legalov, A. A.', 1],
    ['Gültekin, Levent', 1],
    ['Krátký, Jiří', 2],
    ['Legalov, A. A.', 1],
    ['Pentinsaari, Mikko & Anderson, Robert & Borowiec, Lech', 2],
    ['Tonnancour, Pierre de & Anderson, Robert S. & Bouchard, Patrice', 3],
    ['Webster, Reginald P. & Anderson, Robert S. & Sweeney, Jon D.', 1],
    ['Yoshitake, Hiraku & Fujisawa, Takumi & Goto, Junko', 1],
    ['Yunakov, Nikolai & Nazarenko, Vitalij & Filimonov, Rostislav', 75]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=136)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 15, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);