function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Berchi, Gavril Marius', 5],
    ['Cianferoni, Fabio', 4],
    ['Cianferoni, Fabio & Mazza, Giuseppe', 3],
    ['Cianferoni, Fabio & Rocchi, Saverio & Terzani, Fabio', 2],
    ['Damgaard, Jakob & Moreira, Felipe Ferraz Figueiredo', 3],
    ['Fabricius, Johann Christian', 2],
    ['Fent, Meral & Kment, Petr & Çamur-Elipek, Belgin & Kirgiz, Timur', 8],
    ['Ghahari, Hassan & Moulet, Pierre & Ostovan, Hadi', 2],
    ['Linnaeus, Carolus', 4],
    ['Moreira, Felipe Ferraz Figueiredo & Barbosa, Julianna Freires', 7],
    ['Shapovalov, Maksim I. & Saprykin, Maksim A.', 3],
    ['Slimani, Noura & Moulet, Pierre & Chen, Ping-Ping & Nieser, Nico', 4],
    ['Takiya, Daniela Maeda & Santos, Allan Paulo Moreira', 4],
    ['Taybi, Abdelkhaleq Fouzi & Mabrouki, Youness & Chavanon, Guy', 6],
    ['Yildirim, E. & Yazici, G. & Moulet, P.', 3],
    ['Other (12)', 14]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=74)',
    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);