function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Carrenho, Renan & Rodrigues, Higor D. D.', 3],
    ['Cianferoni, Fabio & Mazza, Giuseppe', 2],
    ['Fent, Meral & Kment, Petr & Çamur-Elipek, Belgin & Kirgiz, Timur', 3],
    ['Ghahari, Hassan & Moulet, Pierre & Ostovan, Hadi', 6],
    ['Kment, Petr & Kolínová, Zdislava', 5],
    ['Linnaeus, Carolus', 8],
    ['Mazzucconi, Silvia Ana & Reyes, Cristina Armúa De', 7],
    ['Moreira, Felipe Ferraz Figueiredo & Barbosa, Julianna Freires', 49],
    ['Nieser, Nico & Chen, Ping-ping & Yang, Chang Man', 6],
    ['Polhemus, Dan A. & Polhemus, John T.', 22],
    ['Shapovalov, Maksim I. & Saprykin, Maksim A.', 3],
    ['Tran, A. D. & Poggi, R.', 5],
    ['Tran, A. D. & Polhemus, Dan A.', 3],
    ['Tran, A. D. & Zettel, H.', 42],
    ['Zettel, Herbert & Tran, A. D.', 3],
    ['Other (19)', 24]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=191)',
    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);