function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Akkari, Nesrine & Stoev, Pavel & Lewis, John', 2],
    ['Chagas-Jr, Amazonas & Chaparro, Elisa', 6],
    ['Cupul-Magaña, Fabio Germán', 9],
    ['Doménech, Carles & Nagel, Peter', 4],
    ['Hollier, John & Stagl, Verena', 15],
    ['Lewis, JGE', 3],
    ['Linnaeus, Carolus', 10],
    ['Marzio Zapparoli', 4],
    ['Mercurio, Randy J.', 3],
    ['Simaiakis, Stylianos Michail & Edgecombe, Gregory D.', 8],
    ['Siriwut, Warut & Edgecombe, Gregory D. & Sutcharit, Chirasak', 10],
    ['Thofern, Detlef & Dupérré, Nadine & Harms, Danilo', 14],
    ['Tran, Binh T. T. & Le, Son X. & Nguyen, Anh D.', 8],
    ['Wood, Horatio C.', 20],
    ['Zarei, Roghaieh & Rahimian, Hassan & Mirmonsef, Hassan', 4],
    ['Other (15)', 25]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=145)',
    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);