function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Aguilar-Cano, José & Guzmán-Guzmán, Santiago', 2],
    ['Arunraj, Parappurakkal Thazhe', 4],
    ['Cheek, Martin & Traclet, Sébastien', 2],
    ['Francis, Dani & Mohan, Vishnu & Venugopal, Divya K.', 2],
    ['Guzmán-Guzmán, Santiago & Plata-Torres, Angelo', 2],
    ['Howell, Nathan & Krings, Alexander & Braham, Richard R', 2],
    ['Jarvis, Charlie', 2],
    ['Linnaeus, Carolus', 2],
    ['Mendoza, Jose Christopher E. & Ng, Peter K. L.', 2],
    ['Nuraliev, Maxim S. & Beer, Anton S. & Kuznetsov, Andrey N.', 2],
    ['Nuraliev, Maxim S. & Yudina, Sophia V. & Truong, Ba Vuong', 17],
    ['Oliveira, Adriana & Bove, Claudia', 6],
    ['Silva, Die- -- Go Fe- -- Rre- -- Ira Da', 2],
    ['Silva, Diego Ferreira Da & Honório, Mayk', 2],
    ['Yunoh, Siti-Munirah Mat & Nikong, Dome', 3],
    ['Other (19)', 20]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=72)',
    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);