function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Guil, Noemí', 3],
    ['Kaczmarek, Łukasz', 24],
    ['Kaczmarek, Łukasz & Bertolani, Roberto', 1],
    ['Kaczmarek, Łukasz & Cytan, Joanna & Zawierucha, Krzysztof', 1],
    ['Kaczmarek, Łukasz & Gołdyn, Bartłomiej & Prokop, Zofia M.', 1],
    ['Kaczmarek, Łukasz & Michalczyk, Łukasz & Mcinnes, Sandra J.', 20],
    ['Li, Xiaochen', 3],
    ['Li, Xiaochen & Wang, Lizhi', 1],
    ['Li, Xiaochen & Wang, Lizhi & Yu, Di', 1],
    ['Pilato, G. & Binda, M. G. & Napolitano, A. & Moncada, E.', 1],
    ['Pilato, Giovanni & Kiosya, Yevgen & Lisi, Oscar', 6],
    ['Pilato, Giovanni & Lisi, Oscar & Binda, Maria Grazia', 5],
    ['Pilato, Giovanni & Sabella, Giorgio & Lisi, Oscar', 2],
    ['Wang, Lizhi', 3],
    ['Zawierucha, Krzysztof & Dziamiecki, Jakub & Jakubowska, Natalia', 2],
    ['Other (5)', 5]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=79)',
    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);