function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Craveiro, Nykon & Filho, José Souto Rosa', 1],
    ['Díaz-Díaz, Oscar & Rozbaczylo, Nicolás', 2],
    ['Faulwetter, Sarah & Simboura, Nomiki & Katsiaras, Nikolaos', 2],
    ['Glasby, Christopher J. & Timm, Tarmo & Muir, Alexander I.', 1],
    ['Gunton, Laetitia M. & Kupriyanova, Elena K. & Alvestad, Tom', 2],
    ['Mikac, Barbara', 1],
    ['Muir, Alexander I. & Petersen, Mary E.', 1],
    ['Razmi Shah, Raz Shauqeena Batrisyea & Ibrahim, Yusof Shuaib', 1],
    ['Salazar-Vallejo, Sergio I.', 4],
    ['Salazar-Vallejo, Sergio I. & Buzhinskaja, Galina', 5],
    ['Salazar-Vallejo, Sergio I. & Carrera-Parra, Luis F.', 1],
    ['Selenka, E.', 1],
    ['Sendall, Kelly & Salazar-Vallejo, Sergio I.', 14],
    ['Wu, Xuwen & Salazar-Vallejo, Sergio I. & Xu, Kuidong', 3],
    ['Wu, Xuwen & Xu, Kuidong', 4]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=43)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 15, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);