function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Alvarez, Belinda & De Voogd, Nicole J. & Soest, Van', 9],
    ['Bertolino, Marco & Costa, Gabriele & Bavestrello, Giorgio', 3],
    ['Calcinai, Barbara & Belfiore, Giuseppe & Pica, Daniela', 3],
    ['Cavalcanti, Thaynã & Recinos, Radharanne & Pinheiro, Ulisses', 3],
    ['Gerasimova, Elena & Erpenbeck, Dirk & Plotkin, Alexander', 5],
    ['Göcke, Christian & Janussen, Dorte', 4],
    ['Rützler, Klaus & Piantoni, Carla & Van, Rob W. M.', 10],
    ['Samaai, Toufiek & Pillay, Ruwen & Janson, Liesl', 10],
    ['Santos, George Garcia & Pinheiro, Ulisses & Hajdu, Eduardo', 3],
    ['Schmidt, Eduard Oscar', 3],
    ['Sitjà, Cèlia & Maldonado, Manuel', 6],
    ['Turner, Thomas L.', 6],
    ['Ugalde, Diana & Gómez, Patricia & Simões, Nuno', 5],
    ['Van, Rob W. M.', 13],
    ['Zea, Sven & Pulido, Alejandra', 3],
    ['Other (24)', 36]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=122)',
    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);