function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Ancey, C. F.', 1],
    ['Anistratenko, V. V. & Furyk, Yu. I. & Anistratenko, O. Yu.', 3],
    ['Bargues, M Dolores & Artigas, P. & Khoubbane, Messaoud', 1],
    ['Cowie, Robert H. & Héros, Virginie & Yeung, Norine W.', 2],
    ['Gloeer, Peter & Pesic, Vladimir', 1],
    ['Lea, I.', 1],
    ['Marinskiy, Vadim V.', 1],
    ['Marković, Vanja & Gojšina, Vukašin & Novaković, Boris', 1],
    ['Pease, W. H.', 1],
    ['Pesic, Vladimir & Gloeer, Peter', 1],
    ['Philippi, R. A.', 1],
    ['Pugh, Philip J. A. & Scott, Bronwen', 4],
    ['Rogers, D. Christopher & Cruz-Rivera, Edwin', 1],
    ['Schultheiss, Roland & Ndeo, Oscar Wembo & Malikwisha, Meni', 1],
    ['Souleyet, F. L. A.', 2],
    ['Other (2)', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=24)',
    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);