function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Alatawi, Fahad Jaber & Kamran, Muhammad & Mirza, Jawwad Hassan', 1],
    ['Bal, Durmuş Ali', 1],
    ['Berlese, Antonio', 1],
    ['Bloszyk, Jerzy & Stachowiak, Marcin & Halliday, Bruce', 4],
    ['Bolger, Thomas & Arroyo, Julio & Piotrowska, Katarzyna', 1],
    ['Ebrahimi, Najmeh & Noei, Javad', 2],
    ['Farahi, Sara & Shishehbor, Parviz & Nemati, Alireza', 5],
    ['Halliday, R. B.', 10],
    ['Kontschan, Jeno & Ermilov, Sergey G.', 2],
    ['Kontschán, Jenó', 5],
    ['Kontschán, Jenõ', 3],
    ['Kontschán, Jenö', 2],
    ['Kontschán, Jenő & Starý, Josef', 8],
    ['Lin, Jian-Zhen', 3],
    ['Nemati, Alireza & Riahi, Elham & Khalili-Moghadam, Arsalan', 2],
    ['Other (5)', 5]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=55)',
    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);