function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Akhter, Muhammad Atique & Drumont, Alain & Rizvi, Syed Anser', 8],
    ['Arimoto, Kôichi & Itô, Reo', 2],
    ['Eschscholtz, Johann Friedrich von', 1],
    ['Girard, Claude', 15],
    ['Han, Tae Man & Sim, Ha Sik & Lee, Seunghwan & Park, Hae Chul', 1],
    ['Hoffmannova, Johana & Packova, Gabriela', 11],
    ['Johnston, M. Andrew & Waite, Evan S. & Wright, Ethan R', 1],
    ['Platia, Giuseppe & Ghahari, Hassan', 1],
    ['Ruchin, Alexaner B. & Egorov, Leonid V. & Alekseev, Sergei K.', 1],
    ['Van Zwaluwenburg, R. H.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=42)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 10, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);