function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Agrain, Federico A. & Chamorro, Maria Lourdes & Cabrera, Nora', 1],
    ['Barney, Robert J.', 263],
    ['Barney, Robert J. & LeSage, Laurent & Savard, Karine', 18],
    ['Cho, H. - W. & An, S. L.', 5],
    ['Clark, Shawn M. & Lillrose, Tiffany & Belo Neto, Luiz A.', 2],
    ['Dejean, Pierre François Marie Auguste', 1],
    ['Ekiz, Ali Nafiz & Şen, İsmail & Aslan, Ebru Gül & Gök, Ali', 1],
    ['Guskova, Elena V. & Akulov, Evgeny N. & Loshchev, Sergey M.', 3],
    ['Johnston, M. Andrew & Waite, Evan S. & Wright, Ethan R', 5],
    ['Montagna, Matteo', 1],
    ['Montagna, Matteo & Sassi, Davide & Giorgi, Annamaria', 1],
    ['Petitpierre, Eduard & Sacarés, Antoni & Jurado-Rivera, José A.', 1],
    ['Riley, Edward G. & Barney, Robert J.', 6],
    ['Romantsov, Pavel', 1],
    ['Webster, Reginald P. & LeSage, Laurent & DeMerchant, Ian', 2],
    ['Other (2)', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=313)',
    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);